19630957190 has 48 divisors (see below), whose sum is σ = 38292750000. Its totient is φ = 7242708096.

The previous prime is 19630957183. The next prime is 19630957219. The reversal of 19630957190 is 9175903691.

It is a super-2 number, since 2×19630957190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2614061 + ... + 2621559.

It is an arithmetic number, because the mean of its divisors is an integer number (797765625).

Almost surely, 2^19630957190 is an apocalyptic number.

19630957190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19630957190 is a deficient number, since it is larger than the sum of its proper divisors (18661792810).

19630957190 is a wasteful number, since it uses less digits than its factorization.

19630957190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081 (or 9068 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 50.

The spelling of 19630957190 in words is "nineteen billion, six hundred thirty million, nine hundred fifty-seven thousand, one hundred ninety".