1015857368490 has 16 divisors (see below), whose sum is σ = 2438057684448. Its totient is φ = 270895298256.

The previous prime is 1015857368489. The next prime is 1015857368507. The reversal of 1015857368490 is 948637585101.

1015857368490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1015857368490.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16930956112 + ... + 16930956171.

It is an arithmetic number, because the mean of its divisors is an integer number (152378605278).

Almost surely, 2^{1015857368490} is an apocalyptic number.

1015857368490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1015857368490 is an abundant number, since it is smaller than the sum of its proper divisors (1422200315958).

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

1015857368490 is a wasteful number, since it uses less digits than its factorization.

1015857368490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33861912293.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 1015857368490 in words is "one trillion, fifteen billion, eight hundred fifty-seven million, three hundred sixty-eight thousand, four hundred ninety".