78465515320763 has 4 divisors (see below), whose sum is σ = 81877059465168. Its totient is φ = 75053971176360.

The previous prime is 78465515320727. The next prime is 78465515320781. The reversal of 78465515320763 is 36702351556487.

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

It is a cyclic number.

It is not a de Polignac number, because 78465515320763 - 2³⁴ = 78448335451579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78465515320696 and 78465515320705.

It is not an unprimeable number, because it can be changed into a prime (78465515320663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705772072168 + ... + 1705772072213.

It is an arithmetic number, because the mean of its divisors is an integer number (20469264866292).

Almost surely, 2^{78465515320763} is an apocalyptic number.

78465515320763 is a deficient number, since it is larger than the sum of its proper divisors (3411544144405).

78465515320763 is a wasteful number, since it uses less digits than its factorization.

78465515320763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411544144404.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 78465515320763 in words is "seventy-eight trillion, four hundred sixty-five billion, five hundred fifteen million, three hundred twenty thousand, seven hundred sixty-three".