26620499232 has 96 divisors (see below), whose sum is σ = 77774256000. Its totient is φ = 8858513664.

The previous prime is 26620499231. The next prime is 26620499251. The reversal of 26620499232 is 23299402662.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (26620499231) 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, 491818 + ... + 543254.

It is an arithmetic number, because the mean of its divisors is an integer number (810148500).

Almost surely, 2^26620499232 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 26620499232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38887128000).

26620499232 is an abundant number, since it is smaller than the sum of its proper divisors (51153756768).

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

26620499232 is a wasteful number, since it uses less digits than its factorization.

26620499232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52055 (or 52041 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 26620499232 in words is "twenty-six billion, six hundred twenty million, four hundred ninety-nine thousand, two hundred thirty-two".