1993261379952 has 40 divisors (see below), whose sum is σ = 5315363683840. Its totient is φ = 642987541440.

The previous prime is 1993261379947. The next prime is 1993261379971. The reversal of 1993261379952 is 2599731623991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669777202 + ... + 669780177.

It is an arithmetic number, because the mean of its divisors is an integer number (132884092096).

Almost surely, 2^{1993261379952} is an apocalyptic number.

1993261379952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1993261379952 is an abundant number, since it is smaller than the sum of its proper divisors (3322102303888).

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

1993261379952 is a wasteful number, since it uses less digits than its factorization.

1993261379952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339557421 (or 1339557415 counting only the distinct ones).

The product of its digits is 49601160, while the sum is 66.

The spelling of 1993261379952 in words is "one trillion, nine hundred ninety-three billion, two hundred sixty-one million, three hundred seventy-nine thousand, nine hundred fifty-two".