1365772532172 has 48 divisors (see below), whose sum is σ = 3374808998400. Its totient is φ = 428408140032.

The previous prime is 1365772532149. The next prime is 1365772532177. The reversal of 1365772532172 is 2712352775631.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1365772532177) 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, 724593 + ... + 1804599.

It is an arithmetic number, because the mean of its divisors is an integer number (70308520800).

Almost surely, 2^{1365772532172} is an apocalyptic number.

1365772532172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1365772532172 is an abundant number, since it is smaller than the sum of its proper divisors (2009036466228).

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

1365772532172 is a wasteful number, since it uses less digits than its factorization.

1365772532172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086230 (or 1086228 counting only the distinct ones).

The product of its digits is 3704400, while the sum is 51.

The spelling of 1365772532172 in words is "one trillion, three hundred sixty-five billion, seven hundred seventy-two million, five hundred thirty-two thousand, one hundred seventy-two".