26478885534 has 16 divisors (see below), whose sum is σ = 56072934288. Its totient is φ = 8307101312.

The previous prime is 26478885533. The next prime is 26478885541. The reversal of 26478885534 is 43558887462.

It is a super-2 number, since 2×26478885534² (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 (26478885533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129798357 + ... + 129798560.

It is an arithmetic number, because the mean of its divisors is an integer number (3504558393).

Almost surely, 2^26478885534 is an apocalyptic number.

26478885534 is an abundant number, since it is smaller than the sum of its proper divisors (29594048754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26478885534 is a wasteful number, since it uses less digits than its factorization.

26478885534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259596939.

The product of its digits is 51609600, while the sum is 60.

The spelling of 26478885534 in words is "twenty-six billion, four hundred seventy-eight million, eight hundred eighty-five thousand, five hundred thirty-four".