15798640630 has 32 divisors (see below), whose sum is σ = 29534906880. Its totient is φ = 6080158560.

The previous prime is 15798640597. The next prime is 15798640631. The reversal of 15798640630 is 3604689751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15798640631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257136 + ... + 312595.

It is an arithmetic number, because the mean of its divisors is an integer number (922965840).

Almost surely, 2^15798640630 is an apocalyptic number.

15798640630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15798640630 is a deficient number, since it is larger than the sum of its proper divisors (13736266250).

15798640630 is a wasteful number, since it uses less digits than its factorization.

15798640630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569844.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 15798640630 in words is "fifteen billion, seven hundred ninety-eight million, six hundred forty thousand, six hundred thirty".