26254640156 has 24 divisors (see below), whose sum is σ = 47718741504. Its totient is φ = 12625910640.

The previous prime is 26254640131. The next prime is 26254640197. The reversal of 26254640156 is 65104645262.

It is a super-2 number, since 2×26254640156² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629270 + ... + 669693.

It is an arithmetic number, because the mean of its divisors is an integer number (1988280896).

Almost surely, 2^26254640156 is an apocalyptic number.

It is an amenable number.

26254640156 is a deficient number, since it is larger than the sum of its proper divisors (21464101348).

26254640156 is a wasteful number, since it uses less digits than its factorization.

26254640156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299161 (or 1299159 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 26254640156 in words is "twenty-six billion, two hundred fifty-four million, six hundred forty thousand, one hundred fifty-six".