26542040511 has 16 divisors (see below), whose sum is σ = 40463295488. Its totient is φ = 15160024800.

The previous prime is 26542040491. The next prime is 26542040527. The reversal of 26542040511 is 11504024562.

It is not a de Polignac number, because 26542040511 - 2¹⁰ = 26542039487 is a prime.

It is a super-2 number, since 2×26542040511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26542040911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237895 + ... + 331176.

It is an arithmetic number, because the mean of its divisors is an integer number (2528955968).

Almost surely, 2^26542040511 is an apocalyptic number.

26542040511 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26542040511 is a deficient number, since it is larger than the sum of its proper divisors (13921254977).

26542040511 is a wasteful number, since it uses less digits than its factorization.

26542040511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571302.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 26542040511 in words is "twenty-six billion, five hundred forty-two million, forty thousand, five hundred eleven".