738387220172 has 24 divisors (see below), whose sum is σ = 1516687265184. Its totient is φ = 307898917632.

The previous prime is 738387220159. The next prime is 738387220199. The reversal of 738387220172 is 271022783837.

It is a self number, because there is not a number n which added to its sum of digits gives 738387220172.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356363453 + ... + 356365524.

It is an arithmetic number, because the mean of its divisors is an integer number (63195302716).

Almost surely, 2^738387220172 is an apocalyptic number.

It is an amenable number.

738387220172 is an abundant number, since it is smaller than the sum of its proper divisors (778300045012).

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

738387220172 is a wasteful number, since it uses less digits than its factorization.

738387220172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712729025 (or 712729023 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 738387220172 in words is "seven hundred thirty-eight billion, three hundred eighty-seven million, two hundred twenty thousand, one hundred seventy-two".