1512630386172 has 144 divisors (see below), whose sum is σ = 4224195480960. Its totient is φ = 471917181888.

The previous prime is 1512630386159. The next prime is 1512630386207. The reversal of 1512630386172 is 2716830362151.

It is a happy number.

1512630386172 is a `hidden beast` number, since 1 + 5 + 1 + 2 + 630 + 3 + 8 + 6 + 1 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1039438 + ... + 2026250.

It is an arithmetic number, because the mean of its divisors is an integer number (29334690840).

Almost surely, 2^{1512630386172} is an apocalyptic number.

1512630386172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1512630386172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112097740480).

1512630386172 is an abundant number, since it is smaller than the sum of its proper divisors (2711565094788).

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

1512630386172 is a wasteful number, since it uses less digits than its factorization.

1512630386172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986934 (or 986920 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 1512630386172 in words is "one trillion, five hundred twelve billion, six hundred thirty million, three hundred eighty-six thousand, one hundred seventy-two".