72668510 has 8 divisors (see below), whose sum is σ = 130803336. Its totient is φ = 29067400.

The previous prime is 72668509. The next prime is 72668537. The reversal of 72668510 is 1586627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3633416 + ... + 3633435.

It is an arithmetic number, because the mean of its divisors is an integer number (16350417).

Almost surely, 2^72668510 is an apocalyptic number.

72668510 is a deficient number, since it is larger than the sum of its proper divisors (58134826).

72668510 is a wasteful number, since it uses less digits than its factorization.

72668510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266858.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 72668510 is about 8524.5826877332. The cubic root of 72668510 is about 417.3003527499.

The spelling of 72668510 in words is "seventy-two million, six hundred sixty-eight thousand, five hundred ten".