78317432627 has 8 divisors (see below), whose sum is σ = 89531304192. Its totient is φ = 67109977800.

The previous prime is 78317432621. The next prime is 78317432657. The reversal of 78317432627 is 72623471387.

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

It is a cyclic number.

It is not a de Polignac number, because 78317432627 - 2²⁶ = 78250323763 is a prime.

It is a super-2 number, since 2×78317432627² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78317432621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577999 + ... + 1626872.

It is an arithmetic number, because the mean of its divisors is an integer number (11191413024).

Almost surely, 2^78317432627 is an apocalyptic number.

78317432627 is a deficient number, since it is larger than the sum of its proper divisors (11213871565).

78317432627 is a wasteful number, since it uses less digits than its factorization.

78317432627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208369.

The product of its digits is 2370816, while the sum is 50.

The spelling of 78317432627 in words is "seventy-eight billion, three hundred seventeen million, four hundred thirty-two thousand, six hundred twenty-seven".