12177475732 has 12 divisors (see below), whose sum is σ = 21328544160. Its totient is φ = 6083605976.

The previous prime is 12177475727. The next prime is 12177475733. The reversal of 12177475732 is 23757477121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12177475733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277632 + ... + 1287127.

It is an arithmetic number, because the mean of its divisors is an integer number (1777378680).

Almost surely, 2^12177475732 is an apocalyptic number.

It is an amenable number.

12177475732 is a deficient number, since it is larger than the sum of its proper divisors (9151068428).

12177475732 is a wasteful number, since it uses less digits than its factorization.

12177475732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565950 (or 2565948 counting only the distinct ones).

The product of its digits is 576240, while the sum is 46.

It can be divided in two parts, 121774 and 75732, that added together give a triangular number (197506 = T₆₂₈).

The spelling of 12177475732 in words is "twelve billion, one hundred seventy-seven million, four hundred seventy-five thousand, seven hundred thirty-two".