392242873457 has 2 divisors, whose sum is σ = 392242873458. Its totient is φ = 392242873456.

The previous prime is 392242873453. The next prime is 392242873487. The reversal of 392242873457 is 754378242293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391345331776 + 897541681 = 625576^2 + 29959^2 .

It is a cyclic number.

It is not a de Polignac number, because 392242873457 - 2² = 392242873453 is a prime.

It is not a weakly prime, because it can be changed into another prime (392242873453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196121436728 + 196121436729.

It is an arithmetic number, because the mean of its divisors is an integer number (196121436729).

Almost surely, 2^392242873457 is an apocalyptic number.

It is an amenable number.

392242873457 is a deficient number, since it is larger than the sum of its proper divisors (1).

392242873457 is an equidigital number, since it uses as much as digits as its factorization.

392242873457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 56.

The spelling of 392242873457 in words is "three hundred ninety-two billion, two hundred forty-two million, eight hundred seventy-three thousand, four hundred fifty-seven".