1213162641792 has 128 divisors (see below), whose sum is σ = 3600298447200. Its totient is φ = 402153154560.

The previous prime is 1213162641787. The next prime is 1213162641811. The reversal of 1213162641792 is 2971462613121.

1213162641792 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 1 + 626 + 4 + 17 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344163 + ... + 1595234.

Almost surely, 2^{1213162641792} is an apocalyptic number.

1213162641792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213162641792 is an abundant number, since it is smaller than the sum of its proper divisors (2387135805408).

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

1213162641792 is a wasteful number, since it uses less digits than its factorization.

1213162641792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939601 (or 1939583 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 1213162641792 in words is "one trillion, two hundred thirteen billion, one hundred sixty-two million, six hundred forty-one thousand, seven hundred ninety-two".