378949890250 has 64 divisors (see below), whose sum is σ = 726936511392. Its totient is φ = 147834048000.

The previous prime is 378949890239. The next prime is 378949890257. The reversal of 378949890250 is 52098949873.

It can be written as a sum of positive squares in 16 ways, for example, as 99439946281 + 279509943969 = 315341^2 + 528687^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (378949890257) 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, 56955924 + ... + 56962576.

Almost surely, 2^378949890250 is an apocalyptic number.

378949890250 is a deficient number, since it is larger than the sum of its proper divisors (347986621142).

378949890250 is a wasteful number, since it uses less digits than its factorization.

378949890250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268 (or 12258 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 378949890250 in words is "three hundred seventy-eight billion, nine hundred forty-nine million, eight hundred ninety thousand, two hundred fifty".