78968960667 has 16 divisors (see below), whose sum is σ = 117501940000. Its totient is φ = 52416074592.

The previous prime is 78968960591. The next prime is 78968960671. The reversal of 78968960667 is 76606986987.

78968960667 is a `hidden beast` number, since 7 + 8 + 9 + 6 + 8 + 9 + 606 + 6 + 7 = 666.

It is not a de Polignac number, because 78968960667 - 2¹⁵ = 78968927899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78968960595 and 78968960604.

It is not an unprimeable number, because it can be changed into a prime (78968965667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6379792 + ... + 6392157.

It is an arithmetic number, because the mean of its divisors is an integer number (7343871250).

Almost surely, 2^78968960667 is an apocalyptic number.

78968960667 is a deficient number, since it is larger than the sum of its proper divisors (38532979333).

78968960667 is a wasteful number, since it uses less digits than its factorization.

78968960667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12772187 (or 12772181 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 72.

The spelling of 78968960667 in words is "seventy-eight billion, nine hundred sixty-eight million, nine hundred sixty thousand, six hundred sixty-seven".