78740953630 has 32 divisors (see below), whose sum is σ = 143098908480. Its totient is φ = 31193268480.

The previous prime is 78740953609. The next prime is 78740953679. The reversal of 78740953630 is 3635904787.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575735 + ... + 2606125.

It is an arithmetic number, because the mean of its divisors is an integer number (4471840890).

Almost surely, 2^78740953630 is an apocalyptic number.

78740953630 is a deficient number, since it is larger than the sum of its proper divisors (64357954850).

78740953630 is a wasteful number, since it uses less digits than its factorization.

78740953630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32884.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 78740953630 in words is "seventy-eight billion, seven hundred forty million, nine hundred fifty-three thousand, six hundred thirty".