78051707563 has 16 divisors (see below), whose sum is σ = 80638959744. Its totient is φ = 75505121280.

The previous prime is 78051707549. The next prime is 78051707627. The reversal of 78051707563 is 36570715087.

It is a cyclic number.

It is not a de Polignac number, because 78051707563 - 2²⁵ = 78018153131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78051707663) 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, 3622783 + ... + 3644263.

It is an arithmetic number, because the mean of its divisors is an integer number (5039934984).

Almost surely, 2^78051707563 is an apocalyptic number.

78051707563 is a deficient number, since it is larger than the sum of its proper divisors (2587252181).

78051707563 is a wasteful number, since it uses less digits than its factorization.

78051707563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22422.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 78051707563 in words is "seventy-eight billion, fifty-one million, seven hundred seven thousand, five hundred sixty-three".