78422822487 has 16 divisors (see below), whose sum is σ = 122296800000. Its totient is φ = 49530203352.

The previous prime is 78422822483. The next prime is 78422822557.

It is a happy number.

78422822487 is a `hidden beast` number, since 7 + 84 + 2 + 2 + 82 + 2 + 487 = 666.

78422822487 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78422822487 - 2² = 78422822483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78422822483) 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, 76434987 + ... + 76436012.

It is an arithmetic number, because the mean of its divisors is an integer number (7643550000).

Almost surely, 2^78422822487 is an apocalyptic number.

78422822487 is a deficient number, since it is larger than the sum of its proper divisors (43873977513).

78422822487 is a wasteful number, since it uses less digits than its factorization.

78422822487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152871027 (or 152871021 counting only the distinct ones).

The product of its digits is 6422528, while the sum is 54.

The spelling of 78422822487 in words is "seventy-eight billion, four hundred twenty-two million, eight hundred twenty-two thousand, four hundred eighty-seven".