26344401538 has 16 divisors (see below), whose sum is σ = 48635818560. Its totient is φ = 10421960976.

The previous prime is 26344401511. The next prime is 26344401557. The reversal of 26344401538 is 83510444362.

It is a self number, because there is not a number n which added to its sum of digits gives 26344401538.

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, 72374548 + ... + 72374911.

It is an arithmetic number, because the mean of its divisors is an integer number (3039738660).

Almost surely, 2^26344401538 is an apocalyptic number.

26344401538 is a deficient number, since it is larger than the sum of its proper divisors (22291417022).

26344401538 is a wasteful number, since it uses less digits than its factorization.

26344401538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144749481.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 26344401538 in words is "twenty-six billion, three hundred forty-four million, four hundred one thousand, five hundred thirty-eight".