26240615155 has 32 divisors (see below), whose sum is σ = 32574597120. Its totient is φ = 20277371520.

The previous prime is 26240615111. The next prime is 26240615189. The reversal of 26240615155 is 55151604262.

It is not a de Polignac number, because 26240615155 - 2¹¹ = 26240613107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25255126 + ... + 25256164.

It is an arithmetic number, because the mean of its divisors is an integer number (1017956160).

Almost surely, 2^26240615155 is an apocalyptic number.

26240615155 is a deficient number, since it is larger than the sum of its proper divisors (6333981965).

26240615155 is a wasteful number, since it uses less digits than its factorization.

26240615155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 26240615155 in words is "twenty-six billion, two hundred forty million, six hundred fifteen thousand, one hundred fifty-five".