172050390004 has 6 divisors (see below), whose sum is σ = 301088182514. Its totient is φ = 86025195000.

The previous prime is 172050389993. The next prime is 172050390007. The reversal of 172050390004 is 400093050271.

It can be written as a sum of positive squares in only one way, i.e., 160760902500 + 11289487504 = 400950^2 + 106252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172050390007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506298747 + ... + 21506298754.

Almost surely, 2^172050390004 is an apocalyptic number.

It is an amenable number.

172050390004 is a deficient number, since it is larger than the sum of its proper divisors (129037792510).

172050390004 is a wasteful number, since it uses less digits than its factorization.

172050390004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43012597505 (or 43012597503 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 172050390004 in words is "one hundred seventy-two billion, fifty million, three hundred ninety thousand, four".