392127692401 has 3 divisors (see below), whose sum is σ = 392128318603. Its totient is φ = 392127066200.

The previous prime is 392127692239. The next prime is 392127692413. The reversal of 392127692401 is 104296721293.

The square root of 392127692401 is 626201.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 334258578801 + 57869113600 = 578151^2 + 240560^2 .

It is a de Polignac number, because none of the positive numbers 2^k-392127692401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392127690401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 313101 + ... + 939301.

Almost surely, 2^392127692401 is an apocalyptic number.

392127692401 is the 626201-st square number.

392127692401 is the 313101-st centered octagonal number.

It is an amenable number.

392127692401 is a deficient number, since it is larger than the sum of its proper divisors (626202).

392127692401 is an frugal number, since it uses more digits than its factorization.

392127692401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252402 (or 626201 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 392127692401 in words is "three hundred ninety-two billion, one hundred twenty-seven million, six hundred ninety-two thousand, four hundred one".