390775049999 has 4 divisors (see below), whose sum is σ = 413761817664. Its totient is φ = 367788282336.

The previous prime is 390775049981. The next prime is 390775050007. The reversal of 390775049999 is 999940577093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390775049999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390775079999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11493383807 + ... + 11493383840.

It is an arithmetic number, because the mean of its divisors is an integer number (103440454416).

Almost surely, 2^390775049999 is an apocalyptic number.

390775049999 is a deficient number, since it is larger than the sum of its proper divisors (22986767665).

390775049999 is a wasteful number, since it uses less digits than its factorization.

390775049999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22986767664.

The product of its (nonzero) digits is 173604060, while the sum is 71.

The spelling of 390775049999 in words is "three hundred ninety billion, seven hundred seventy-five million, forty-nine thousand, nine hundred ninety-nine".