12550037773920 has 48 divisors (see below), whose sum is σ = 39532618989360. Its totient is φ = 3346676739584.

The previous prime is 12550037773877. The next prime is 12550037773927. The reversal of 12550037773920 is 2937773005521.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550037773927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13072955535 + ... + 13072956494.

It is an arithmetic number, because the mean of its divisors is an integer number (823596228945).

Almost surely, 2^{12550037773920} is an apocalyptic number.

12550037773920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550037773920 is an abundant number, since it is smaller than the sum of its proper divisors (26982581215440).

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

12550037773920 is a wasteful number, since it uses less digits than its factorization.

12550037773920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145912047 (or 26145912039 counting only the distinct ones).

The product of its (nonzero) digits is 2778300, while the sum is 51.

The spelling of 12550037773920 in words is "twelve trillion, five hundred fifty billion, thirty-seven million, seven hundred seventy-three thousand, nine hundred twenty".