172431364571444 has 18 divisors (see below), whose sum is σ = 331680992596002. Its totient is φ = 78377892986800.

The previous prime is 172431364571377. The next prime is 172431364571461. The reversal of 172431364571444 is 444175463134271.

172431364571444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 121671268420900 + 50760096150544 = 11030470^2 + 7124612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 172431364571444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178131574487 + ... + 178131575454.

It is an arithmetic number, because the mean of its divisors is an integer number (18426721810889).

Almost surely, 2^{172431364571444} is an apocalyptic number.

It is an amenable number.

172431364571444 is a deficient number, since it is larger than the sum of its proper divisors (159249628024558).

172431364571444 is a wasteful number, since it uses less digits than its factorization.

172431364571444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356263149967 (or 356263149954 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 56.

The spelling of 172431364571444 in words is "one hundred seventy-two trillion, four hundred thirty-one billion, three hundred sixty-four million, five hundred seventy-one thousand, four hundred forty-four".