Search a number
-
+
26485185118511 = 73783597874073
BaseRepresentation
bin1100000010110100100000…
…00011010000000100101111
310110202221220002101210222002
412001122100003100010233
511432413124342243021
6132155043122042515
75402330402010230
oct601322003200457
9113687802353862
1026485185118511
118491338594179
122b7900aaa943b
1311a17083bc122
14677c65877087
1530de1900750b
hex1816900d012f

26485185118511 has 4 divisors (see below), whose sum is σ = 30268782992592. Its totient is φ = 22701587244432.

The previous prime is 26485185118493. The next prime is 26485185118559. The reversal of 26485185118511 is 11581158158462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26485185118511 is a prime.

It is a super-2 number, since 2×264851851185112 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26485185118211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891798937030 + ... + 1891798937043.

It is an arithmetic number, because the mean of its divisors is an integer number (7567195748148).

Almost surely, 226485185118511 is an apocalyptic number.

26485185118511 is a deficient number, since it is larger than the sum of its proper divisors (3783597874081).

26485185118511 is an equidigital number, since it uses as much as digits as its factorization.

26485185118511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783597874080.

The product of its digits is 3072000, while the sum is 56.

The spelling of 26485185118511 in words is "twenty-six trillion, four hundred eighty-five billion, one hundred eighty-five million, one hundred eighteen thousand, five hundred eleven".

Divisors: 1 7 3783597874073 26485185118511