26957643138026 has 32 divisors (see below), whose sum is σ = 42706948515840. Its totient is φ = 12726783889344.

The previous prime is 26957643137977. The next prime is 26957643138029. The reversal of 26957643138026 is 62083134675962.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26957643138026.

It is not an unprimeable number, because it can be changed into a prime (26957643138029) 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, 19308116 + ... + 20657168.

It is an arithmetic number, because the mean of its divisors is an integer number (1334592141120).

It is a 1-persistent number, because it is pandigital, but 2⋅26957643138026 = 53915286276052 is not.

Almost surely, 2^{26957643138026} is an apocalyptic number.

26957643138026 is a deficient number, since it is larger than the sum of its proper divisors (15749305377814).

26957643138026 is a wasteful number, since it uses less digits than its factorization.

26957643138026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350830.

The product of its (nonzero) digits is 78382080, while the sum is 62.

The spelling of 26957643138026 in words is "twenty-six trillion, nine hundred fifty-seven billion, six hundred forty-three million, one hundred thirty-eight thousand, twenty-six".