72678614087 has 4 divisors (see below), whose sum is σ = 72881061840. Its totient is φ = 72476166336.

The previous prime is 72678614033. The next prime is 72678614093. The reversal of 72678614087 is 78041687627.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78041687627 = 218947 ⋅356441.

It is a cyclic number.

It is not a de Polignac number, because 72678614087 - 2²⁰ = 72677565511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72678614587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101223338 + ... + 101224055.

It is an arithmetic number, because the mean of its divisors is an integer number (18220265460).

Almost surely, 2^72678614087 is an apocalyptic number.

72678614087 is a deficient number, since it is larger than the sum of its proper divisors (202447753).

72678614087 is a wasteful number, since it uses less digits than its factorization.

72678614087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202447752.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 72678614087 in words is "seventy-two billion, six hundred seventy-eight million, six hundred fourteen thousand, eighty-seven".