19364630020 has 12 divisors (see below), whose sum is σ = 40665723084. Its totient is φ = 7745852000.

The previous prime is 19364629997. The next prime is 19364630039. The reversal of 19364630020 is 2003646391.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14612457924 + 4752172096 = 120882^2 + 68936^2 .

It is a super-2 number, since 2×19364630020² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484115731 + ... + 484115770.

It is an arithmetic number, because the mean of its divisors is an integer number (3388810257).

Almost surely, 2^19364630020 is an apocalyptic number.

19364630020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19364630020 is an abundant number, since it is smaller than the sum of its proper divisors (21301093064).

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

19364630020 is a wasteful number, since it uses less digits than its factorization.

19364630020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968231510 (or 968231508 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 19364630020 in words is "nineteen billion, three hundred sixty-four million, six hundred thirty thousand, twenty".