72623187630 has 128 divisors (see below), whose sum is σ = 225844992000. Its totient is φ = 16599564576.

The previous prime is 72623187613. The next prime is 72623187647. The reversal of 72623187630 is 3678132627.

72623187630 is a `hidden beast` number, since 7 + 2 + 6 + 2 + 3 + 1 + 8 + 7 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (72623187613) and next prime (72623187647).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299482 + ... + 484701.

It is an arithmetic number, because the mean of its divisors is an integer number (1764414000).

Almost surely, 2^72623187630 is an apocalyptic number.

72623187630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72623187630 is an abundant number, since it is smaller than the sum of its proper divisors (153221804370).

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

72623187630 is a wasteful number, since it uses less digits than its factorization.

72623187630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784220 (or 784200 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 72623187630 in words is "seventy-two billion, six hundred twenty-three million, one hundred eighty-seven thousand, six hundred thirty".