1938997462492 has 48 divisors (see below), whose sum is σ = 3487155864192. Its totient is φ = 942864552000.

The previous prime is 1938997462463. The next prime is 1938997462531. The reversal of 1938997462492 is 2942647998391.

It is a super-2 number, since 2×1938997462492² (a number of 25 digits) contains 22 as substring.

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, 178424443 + ... + 178435309.

It is an arithmetic number, because the mean of its divisors is an integer number (72649080504).

Almost surely, 2^{1938997462492} is an apocalyptic number.

It is an amenable number.

1938997462492 is a deficient number, since it is larger than the sum of its proper divisors (1548158401700).

1938997462492 is a wasteful number, since it uses less digits than its factorization.

1938997462492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298 (or 15296 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 73.

The spelling of 1938997462492 in words is "one trillion, nine hundred thirty-eight billion, nine hundred ninety-seven million, four hundred sixty-two thousand, four hundred ninety-two".