26115315042 has 16 divisors (see below), whose sum is σ = 52274133792. Its totient is φ = 8697854400.

The previous prime is 26115315013. The next prime is 26115315043. The reversal of 26115315042 is 24051351162.

It is a super-2 number, since 2×26115315042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26115315043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1804848 + ... + 1819259.

It is an arithmetic number, because the mean of its divisors is an integer number (3267133362).

Almost surely, 2^26115315042 is an apocalyptic number.

26115315042 is an abundant number, since it is smaller than the sum of its proper divisors (26158818750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26115315042 is a wasteful number, since it uses less digits than its factorization.

26115315042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625313.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 26115315042 in words is "twenty-six billion, one hundred fifteen million, three hundred fifteen thousand, forty-two".