15315701980 has 24 divisors (see below), whose sum is σ = 32171288688. Its totient is φ = 6124697088.

The previous prime is 15315701959. The next prime is 15315701981. The reversal of 15315701980 is 8910751351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15315701981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18069 + ... + 175948.

It is an arithmetic number, because the mean of its divisors is an integer number (1340470362).

Almost surely, 2^15315701980 is an apocalyptic number.

15315701980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15315701980 is an abundant number, since it is smaller than the sum of its proper divisors (16855586708).

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

15315701980 is a wasteful number, since it uses less digits than its factorization.

15315701980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197973 (or 197971 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 15315701980 in words is "fifteen billion, three hundred fifteen million, seven hundred one thousand, nine hundred eighty".