26220958002 has 18 divisors (see below), whose sum is σ = 56813564223. Its totient is φ = 8740090332.

The previous prime is 26220957979. The next prime is 26220958007. The reversal of 26220958002 is 20085902262.

It can be written as a sum of positive squares in only one way, i.e., 13110479001 + 13110479001 = 114501^2 + 114501^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114501.

It is not an unprimeable number, because it can be changed into a prime (26220958007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 667923 + ... + 706089.

Almost surely, 2^26220958002 is an apocalyptic number.

26220958002 is an abundant number, since it is smaller than the sum of its proper divisors (30592606221).

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

26220958002 is an frugal number, since it uses more digits than its factorization.

26220958002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76342 (or 38172 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 26220958002 in words is "twenty-six billion, two hundred twenty million, nine hundred fifty-eight thousand, two".