19979072360 has 64 divisors (see below), whose sum is σ = 50515678080. Its totient is φ = 7056149760.

The previous prime is 19979072353. The next prime is 19979072369. The reversal of 19979072360 is 6327097991.

It is a happy number.

It is a super-2 number, since 2×19979072360² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19979072369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823286 + ... + 847205.

It is an arithmetic number, because the mean of its divisors is an integer number (789307470).

Almost surely, 2^19979072360 is an apocalyptic number.

19979072360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19979072360 is an abundant number, since it is smaller than the sum of its proper divisors (30536605720).

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

19979072360 is a wasteful number, since it uses less digits than its factorization.

19979072360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670538 (or 1670534 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 53.

The spelling of 19979072360 in words is "nineteen billion, nine hundred seventy-nine million, seventy-two thousand, three hundred sixty".