78866872708 has 24 divisors (see below), whose sum is σ = 153428360960. Its totient is φ = 35225897760.

The previous prime is 78866872699. The next prime is 78866872723. The reversal of 78866872708 is 80727866887.

It is a super-2 number, since 2×78866872708² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24460818 + ... + 24464041.

Almost surely, 2^78866872708 is an apocalyptic number.

It is an amenable number.

78866872708 is a deficient number, since it is larger than the sum of its proper divisors (74561488252).

78866872708 is a wasteful number, since it uses less digits than its factorization.

78866872708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48924907 (or 48924905 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 67.

The spelling of 78866872708 in words is "seventy-eight billion, eight hundred sixty-six million, eight hundred seventy-two thousand, seven hundred eight".