19363990072 has 64 divisors (see below), whose sum is σ = 41919897600. Its totient is φ = 8213936640.

The previous prime is 19363990057. The next prime is 19363990091. The reversal of 19363990072 is 27009936391.

It is a super-2 number, since 2×19363990072² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19363989998 and 19363990025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5763129 + ... + 5766487.

It is an arithmetic number, because the mean of its divisors is an integer number (654998400).

Almost surely, 2^19363990072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19363990072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20959948800).

19363990072 is an abundant number, since it is smaller than the sum of its proper divisors (22555907528).

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

19363990072 is a wasteful number, since it uses less digits than its factorization.

19363990072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 49.

The spelling of 19363990072 in words is "nineteen billion, three hundred sixty-three million, nine hundred ninety thousand, seventy-two".