390615000064 has 33 divisors (see below), whose sum is σ = 780888522171. Its totient is φ = 195297500160.

The previous prime is 390615000037. The next prime is 390615000091. The reversal of 390615000064 is 460000516093.

The square root of 390615000064 is 624992.

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

It is an interprime number because it is at equal distance from previous prime (390615000037) and next prime (390615000091).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390614999993 and 390615000029.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 19989979 + ... + 20009509.

Almost surely, 2^390615000064 is an apocalyptic number.

390615000064 is the 624992-nd square number.

It is an amenable number.

390615000064 is a deficient number, since it is larger than the sum of its proper divisors (390273522107).

390615000064 is an frugal number, since it uses more digits than its factorization.

390615000064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39082 (or 19533 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 390615000064 in words is "three hundred ninety billion, six hundred fifteen million, sixty-four", and thus it is an aban number.