78760786850 has 12 divisors (see below), whose sum is σ = 146495063634. Its totient is φ = 31504314720.

The previous prime is 78760786831. The next prime is 78760786859. The reversal of 78760786850 is 5868706787.

It can be written as a sum of positive squares in 3 ways, for example, as 63649739521 + 15111047329 = 252289^2 + 122927^2 .

It is a super-2 number, since 2×78760786850² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78760786859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 787607819 + ... + 787607918.

Almost surely, 2^78760786850 is an apocalyptic number.

78760786850 is a deficient number, since it is larger than the sum of its proper divisors (67734276784).

78760786850 is a wasteful number, since it uses less digits than its factorization.

78760786850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575215749 (or 1575215744 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 62.

The spelling of 78760786850 in words is "seventy-eight billion, seven hundred sixty million, seven hundred eighty-six thousand, eight hundred fifty".