390376647848 has 48 divisors (see below), whose sum is σ = 809671731540. Its totient is φ = 176313646080.

The previous prime is 390376647847. The next prime is 390376647877. The reversal of 390376647848 is 848746673093.

It can be written as a sum of positive squares in 2 ways, for example, as 380839562884 + 9537084964 = 617122^2 + 97658^2 .

It is a super-2 number, since 2×390376647848² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390376647847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1132361 + ... + 1436312.

Almost surely, 2^390376647848 is an apocalyptic number.

It is an amenable number.

390376647848 is an abundant number, since it is smaller than the sum of its proper divisors (419295083692).

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

390376647848 is a wasteful number, since it uses less digits than its factorization.

390376647848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568858 (or 2568843 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 65.

The spelling of 390376647848 in words is "three hundred ninety billion, three hundred seventy-six million, six hundred forty-seven thousand, eight hundred forty-eight".