1315291500650 has 24 divisors (see below), whose sum is σ = 2475917406144. Its totient is φ = 519777844400.

The previous prime is 1315291500587. The next prime is 1315291500659. The reversal of 1315291500650 is 560051925131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1315291500659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158464706 + ... + 158473005.

It is an arithmetic number, because the mean of its divisors is an integer number (103163225256).

Almost surely, 2^{1315291500650} is an apocalyptic number.

1315291500650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315291500650 is a deficient number, since it is larger than the sum of its proper divisors (1160625905494).

1315291500650 is a wasteful number, since it uses less digits than its factorization.

1315291500650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316937806 (or 316937801 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 1315291500650 in words is "one trillion, three hundred fifteen billion, two hundred ninety-one million, five hundred thousand, six hundred fifty".