26490632532 has 48 divisors (see below), whose sum is σ = 76075665792. Its totient is φ = 6986540160.

The previous prime is 26490632527. The next prime is 26490632537. The reversal of 26490632532 is 23523609462.

It is an interprime number because it is at equal distance from previous prime (26490632527) and next prime (26490632537).

It is a super-2 number, since 2×26490632532² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26490632537) 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, 12128319 + ... + 12130502.

It is an arithmetic number, because the mean of its divisors is an integer number (1584909704).

Almost surely, 2^26490632532 is an apocalyptic number.

It is an amenable number.

26490632532 is an abundant number, since it is smaller than the sum of its proper divisors (49585033260).

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

26490632532 is a wasteful number, since it uses less digits than its factorization.

26490632532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24258848 (or 24258846 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 26490632532 in words is "twenty-six billion, four hundred ninety million, six hundred thirty-two thousand, five hundred thirty-two".