19963770036 has 24 divisors (see below), whose sum is σ = 53236720320. Its totient is φ = 5703934272.

The previous prime is 19963770019. The next prime is 19963770067. The reversal of 19963770036 is 63007736991.

It is a super-2 number, since 2×19963770036² (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 7 ways as a sum of consecutive naturals, for example, 118831881 + ... + 118832048.

It is an arithmetic number, because the mean of its divisors is an integer number (2218196680).

Almost surely, 2^19963770036 is an apocalyptic number.

It is an amenable number.

19963770036 is an abundant number, since it is smaller than the sum of its proper divisors (33272950284).

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

19963770036 is a wasteful number, since it uses less digits than its factorization.

19963770036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237663943 (or 237663941 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 51.

The spelling of 19963770036 in words is "nineteen billion, nine hundred sixty-three million, seven hundred seventy thousand, thirty-six".