378621672130 has 32 divisors (see below), whose sum is σ = 751844621808. Its totient is φ = 136389043200.

The previous prime is 378621672101. The next prime is 378621672133. The reversal of 378621672130 is 31276126873.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 50774960889 + 327846711241 = 225333^2 + 572579^2 .

It is not an unprimeable number, because it can be changed into a prime (378621672133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35512651 + ... + 35523310.

Almost surely, 2^378621672130 is an apocalyptic number.

378621672130 is a deficient number, since it is larger than the sum of its proper divisors (373222949678).

378621672130 is a wasteful number, since it uses less digits than its factorization.

378621672130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71036022.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 378621672130 in words is "three hundred seventy-eight billion, six hundred twenty-one million, six hundred seventy-two thousand, one hundred thirty".