26513642932 has 72 divisors (see below), whose sum is σ = 55566254016. Its totient is φ = 10842843264.

The previous prime is 26513642899. The next prime is 26513642933. The reversal of 26513642932 is 23924631562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26513642933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6915288 + ... + 6919120.

It is an arithmetic number, because the mean of its divisors is an integer number (771753528).

Almost surely, 2^26513642932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26513642932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27783127008).

26513642932 is an abundant number, since it is smaller than the sum of its proper divisors (29052611084).

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

26513642932 is a wasteful number, since it uses less digits than its factorization.

26513642932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357 (or 4332 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The spelling of 26513642932 in words is "twenty-six billion, five hundred thirteen million, six hundred forty-two thousand, nine hundred thirty-two".