1939149899292 has 12 divisors (see below), whose sum is σ = 4524683098376. Its totient is φ = 646383299760.

The previous prime is 1939149899279. The next prime is 1939149899311. The reversal of 1939149899292 is 2929989419391.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80797912459 + ... + 80797912482.

Almost surely, 2^{1939149899292} is an apocalyptic number.

1939149899292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1939149899292 is an abundant number, since it is smaller than the sum of its proper divisors (2585533199084).

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

1939149899292 is a wasteful number, since it uses less digits than its factorization.

1939149899292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161595824948 (or 161595824946 counting only the distinct ones).

The product of its digits is 204073344, while the sum is 75.

The spelling of 1939149899292 in words is "one trillion, nine hundred thirty-nine billion, one hundred forty-nine million, eight hundred ninety-nine thousand, two hundred ninety-two".