378756546624 has 63 divisors (see below), whose sum is σ = 1085679592543. Its totient is φ = 126247258752.

The previous prime is 378756546601. The next prime is 378756546647. The reversal of 378756546624 is 426645657873.

It is a happy number.

The square root of 378756546624 is 615432.

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

378756546624 is a `hidden beast` number, since 3 + 7 + 8 + 7 + 565 + 4 + 6 + 62 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (378756546601) and next prime (378756546647).

It is a super-2 number, since 2×378756546624² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14757547 + ... + 14783189.

Almost surely, 2^378756546624 is an apocalyptic number.

378756546624 is the 615432-nd square number.

It is an amenable number.

378756546624 is an abundant number, since it is smaller than the sum of its proper divisors (706923045919).

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

378756546624 is an frugal number, since it uses more digits than its factorization.

378756546624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51304 (or 25648 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 63.

The spelling of 378756546624 in words is "three hundred seventy-eight billion, seven hundred fifty-six million, five hundred forty-six thousand, six hundred twenty-four".