2015863142926 has 64 divisors (see below), whose sum is σ = 3432108672000. Its totient is φ = 882239800320.

The previous prime is 2015863142903. The next prime is 2015863142989. The reversal of 2015863142926 is 6292413685102.

It is a super-2 number, since 2×2015863142926² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2015863142926.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27367186 + ... + 27440746.

It is an arithmetic number, because the mean of its divisors is an integer number (53626698000).

Almost surely, 2^{2015863142926} is an apocalyptic number.

2015863142926 is a deficient number, since it is larger than the sum of its proper divisors (1416245529074).

2015863142926 is a wasteful number, since it uses less digits than its factorization.

2015863142926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74377.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 2015863142926 in words is "two trillion, fifteen billion, eight hundred sixty-three million, one hundred forty-two thousand, nine hundred twenty-six".