19995713090 has 32 divisors (see below), whose sum is σ = 37689998976. Its totient is φ = 7623475200.

The previous prime is 19995713077. The next prime is 19995713099. The reversal of 19995713090 is 9031759991.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19995713099) 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, 88511 + ... + 218690.

It is an arithmetic number, because the mean of its divisors is an integer number (1177812468).

Almost surely, 2^19995713090 is an apocalyptic number.

19995713090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19995713090 is a deficient number, since it is larger than the sum of its proper divisors (17694285886).

19995713090 is a wasteful number, since it uses less digits than its factorization.

19995713090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307514.

The product of its (nonzero) digits is 688905, while the sum is 53.

The spelling of 19995713090 in words is "nineteen billion, nine hundred ninety-five million, seven hundred thirteen thousand, ninety".