390508547556648 has 128 divisors (see below), whose sum is σ = 1073204349177600. Its totient is φ = 117860883861504.

The previous prime is 390508547556641. The next prime is 390508547556671. The reversal of 390508547556648 is 846655745805093.

It is a self number, because there is not a number n which added to its sum of digits gives 390508547556648.

It is not an unprimeable number, because it can be changed into a prime (390508547556641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56297340 + ... + 62852267.

It is an arithmetic number, because the mean of its divisors is an integer number (8384408977950).

Almost surely, 2^{390508547556648} is an apocalyptic number.

It is an amenable number.

390508547556648 is an abundant number, since it is smaller than the sum of its proper divisors (682695801620952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390508547556648 is a wasteful number, since it uses less digits than its factorization.

390508547556648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119149939 (or 119149935 counting only the distinct ones).

The product of its (nonzero) digits is 4354560000, while the sum is 75.

The spelling of 390508547556648 in words is "three hundred ninety trillion, five hundred eight billion, five hundred forty-seven million, five hundred fifty-six thousand, six hundred forty-eight".