390928009572071 has 4 divisors (see below), whose sum is σ = 390928558512072. Its totient is φ = 390927460632072.

The previous prime is 390928009571971. The next prime is 390928009572077. The reversal of 390928009572071 is 170275900829093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390928009572071 - 2³⁰ = 390926935830247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390928009571995 and 390928009572013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390928009572077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273400385 + ... + 274826538.

It is an arithmetic number, because the mean of its divisors is an integer number (97732139628018).

Almost surely, 2^{390928009572071} is an apocalyptic number.

390928009572071 is a deficient number, since it is larger than the sum of its proper divisors (548940001).

390928009572071 is an equidigital number, since it uses as much as digits as its factorization.

390928009572071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548940000.

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 390928009572071 in words is "three hundred ninety trillion, nine hundred twenty-eight billion, nine million, five hundred seventy-two thousand, seventy-one".