19942976239368 has 128 divisors (see below), whose sum is σ = 62052476371200. Its totient is φ = 5200588394496.

The previous prime is 19942976239367. The next prime is 19942976239369. The reversal of 19942976239368 is 86393267924991.

19942976239368 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (19942976239367) and next prime (19942976239369).

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 19942976239293 and 19942976239302.

It is not an unprimeable number, because it can be changed into a prime (19942976239367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51105621 + ... + 51494372.

It is an arithmetic number, because the mean of its divisors is an integer number (484784971650).

Almost surely, 2^{19942976239368} is an apocalyptic number.

It is an amenable number.

19942976239368 is an abundant number, since it is smaller than the sum of its proper divisors (42109500131832).

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

19942976239368 is a wasteful number, since it uses less digits than its factorization.

19942976239368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102600111 (or 102600107 counting only the distinct ones).

The product of its digits is 1904684544, while the sum is 78.

The spelling of 19942976239368 in words is "nineteen trillion, nine hundred forty-two billion, nine hundred seventy-six million, two hundred thirty-nine thousand, three hundred sixty-eight".