78214763672 has 16 divisors (see below), whose sum is σ = 146677791600. Its totient is φ = 39100685920.

The previous prime is 78214763663. The next prime is 78214763681. The reversal of 78214763672 is 27636741287.

It is an interprime number because it is at equal distance from previous prime (78214763663) and next prime (78214763681).

It is a super-2 number, since 2×78214763672² (a number of 23 digits) contains 22 as substring.

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, 787172 + ... + 880947.

It is an arithmetic number, because the mean of its divisors is an integer number (9167361975).

Almost surely, 2^78214763672 is an apocalyptic number.

It is an amenable number.

78214763672 is a deficient number, since it is larger than the sum of its proper divisors (68463027928).

78214763672 is a wasteful number, since it uses less digits than its factorization.

78214763672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673986 (or 1673982 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 53.

The spelling of 78214763672 in words is "seventy-eight billion, two hundred fourteen million, seven hundred sixty-three thousand, six hundred seventy-two".