1238190619920 has 80 divisors (see below), whose sum is σ = 3858279101952. Its totient is φ = 328473354240.

The previous prime is 1238190619891. The next prime is 1238190619937. The reversal of 1238190619920 is 299160918321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1238190619920² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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, 13319296 + ... + 13411935.

Almost surely, 2^{1238190619920} is an apocalyptic number.

1238190619920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1238190619920 is an abundant number, since it is smaller than the sum of its proper divisors (2620088482032).

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

1238190619920 is a wasteful number, since it uses less digits than its factorization.

1238190619920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26731440 (or 26731434 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 1238190619920 in words is "one trillion, two hundred thirty-eight billion, one hundred ninety million, six hundred nineteen thousand, nine hundred twenty".