78760487566 has 4 divisors (see below), whose sum is σ = 118140731352. Its totient is φ = 39380243782.

The previous prime is 78760487557. The next prime is 78760487579. The reversal of 78760487566 is 66578406787.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 78760487498 and 78760487507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19690121890 + ... + 19690121893.

It is an arithmetic number, because the mean of its divisors is an integer number (29535182838).

Almost surely, 2^78760487566 is an apocalyptic number.

78760487566 is a deficient number, since it is larger than the sum of its proper divisors (39380243786).

78760487566 is a wasteful number, since it uses less digits than its factorization.

78760487566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39380243785.

The product of its (nonzero) digits is 94832640, while the sum is 64.

The spelling of 78760487566 in words is "seventy-eight billion, seven hundred sixty million, four hundred eighty-seven thousand, five hundred sixty-six".