19696018932 has 36 divisors (see below), whose sum is σ = 51132761316. Its totient is φ = 6387897600.

The previous prime is 19696018931. The next prime is 19696018957. The reversal of 19696018932 is 23981069691.

It can be written as a sum of positive squares in 2 ways, for example, as 7625480976 + 12070537956 = 87324^2 + 109866^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19696018931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7392069 + ... + 7394732.

It is an arithmetic number, because the mean of its divisors is an integer number (1420354481).

Almost surely, 2^19696018932 is an apocalyptic number.

19696018932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19696018932 is an abundant number, since it is smaller than the sum of its proper divisors (31436742384).

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

19696018932 is a wasteful number, since it uses less digits than its factorization.

19696018932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14786848 (or 14786843 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 19696018932 in words is "nineteen billion, six hundred ninety-six million, eighteen thousand, nine hundred thirty-two".