26011645456 has 20 divisors (see below), whose sum is σ = 50403176892. Its totient is φ = 13004374016.

The previous prime is 26011645433. The next prime is 26011645463. The reversal of 26011645456 is 65454611062.

It can be written as a sum of positive squares in 2 ways, for example, as 23183107600 + 2828537856 = 152260^2 + 53184^2 .

It is a super-3 number, since 3×26011645456³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65760 + ... + 237376.

Almost surely, 2^26011645456 is an apocalyptic number.

It is an amenable number.

26011645456 is a deficient number, since it is larger than the sum of its proper divisors (24391531436).

26011645456 is a wasteful number, since it uses less digits than its factorization.

26011645456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181098 (or 181092 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 26011645456 in words is "twenty-six billion, eleven million, six hundred forty-five thousand, four hundred fifty-six".