1993372856023 has 16 divisors (see below), whose sum is σ = 2016955674720. Its totient is φ = 1969963053696.

The previous prime is 1993372856009. The next prime is 1993372856051. The reversal of 1993372856023 is 3206582733991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1993372856023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993372854023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20029261 + ... + 20128537.

It is an arithmetic number, because the mean of its divisors is an integer number (126059729670).

Almost surely, 2^{1993372856023} is an apocalyptic number.

1993372856023 is a deficient number, since it is larger than the sum of its proper divisors (23582818697).

1993372856023 is a wasteful number, since it uses less digits than its factorization.

1993372856023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100146.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 1993372856023 in words is "one trillion, nine hundred ninety-three billion, three hundred seventy-two million, eight hundred fifty-six thousand, twenty-three".