630286642080 has 144 divisors (see below), whose sum is σ = 2158619345064. Its totient is φ = 167469557760.

The previous prime is 630286642049. The next prime is 630286642123. The reversal of 630286642080 is 80246682036.

630286642080 is a `hidden beast` number, since 6 + 302 + 86 + 64 + 208 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 289646323344 + 340640318736 = 538188^2 + 583644^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×630286642080² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391191 + ... + 1188950.

Almost surely, 2^630286642080 is an apocalyptic number.

630286642080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630286642080 is an abundant number, since it is smaller than the sum of its proper divisors (1528332702984).

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

630286642080 is a wasteful number, since it uses less digits than its factorization.

630286642080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580439 (or 1580428 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 630286642080 in words is "six hundred thirty billion, two hundred eighty-six million, six hundred forty-two thousand, eighty".