26902343638 has 24 divisors (see below), whose sum is σ = 42207057360. Its totient is φ = 12858669600.

The previous prime is 26902343621. The next prime is 26902343641. The reversal of 26902343638 is 83634320962.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90703 + ... + 249061.

It is an arithmetic number, because the mean of its divisors is an integer number (1758627390).

Almost surely, 2^26902343638 is an apocalyptic number.

26902343638 is a deficient number, since it is larger than the sum of its proper divisors (15304713722).

26902343638 is a wasteful number, since it uses less digits than its factorization.

26902343638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158520 (or 158491 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 26902343638 in words is "twenty-six billion, nine hundred two million, three hundred forty-three thousand, six hundred thirty-eight".