193906260972 has 36 divisors (see below), whose sum is σ = 503399290576. Its totient is φ = 62888516640.

The previous prime is 193906260859. The next prime is 193906260983. The reversal of 193906260972 is 279062609391.

193906260972 is a `hidden beast` number, since 1 + 9 + 3 + 9 + 0 + 626 + 0 + 9 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72786304 + ... + 72788967.

Almost surely, 2^193906260972 is an apocalyptic number.

193906260972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

193906260972 is an abundant number, since it is smaller than the sum of its proper divisors (309493029604).

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

193906260972 is a wasteful number, since it uses less digits than its factorization.

193906260972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145575318 (or 145575313 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 193906260972 in words is "one hundred ninety-three billion, nine hundred six million, two hundred sixty thousand, nine hundred seventy-two".