19387659364 has 12 divisors (see below), whose sum is σ = 34503462000. Its totient is φ = 9529527368.

The previous prime is 19387659301. The next prime is 19387659371. The reversal of 19387659364 is 46395678391.

It is a super-2 number, since 2×19387659364² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41075314 + ... + 41075785.

It is an arithmetic number, because the mean of its divisors is an integer number (2875288500).

Almost surely, 2^19387659364 is an apocalyptic number.

It is an amenable number.

19387659364 is a deficient number, since it is larger than the sum of its proper divisors (15115802636).

19387659364 is a wasteful number, since it uses less digits than its factorization.

19387659364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82151162 (or 82151160 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 19387659364 in words is "nineteen billion, three hundred eighty-seven million, six hundred fifty-nine thousand, three hundred sixty-four".