26620311157 has 8 divisors (see below), whose sum is σ = 29041571232. Its totient is φ = 24199256400.

The previous prime is 26620311139. The next prime is 26620311167. The reversal of 26620311157 is 75111302662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26620311157 - 2²⁷ = 26486093429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26620311167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370623 + ... + 436579.

It is an arithmetic number, because the mean of its divisors is an integer number (3630196404).

Almost surely, 2^26620311157 is an apocalyptic number.

It is an amenable number.

26620311157 is a deficient number, since it is larger than the sum of its proper divisors (2421260075).

26620311157 is a wasteful number, since it uses less digits than its factorization.

26620311157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102659.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 26620311157 in words is "twenty-six billion, six hundred twenty million, three hundred eleven thousand, one hundred fifty-seven".