78623862477 has 8 divisors (see below), whose sum is σ = 104971409280. Its totient is φ = 52346112000.

The previous prime is 78623862467. The next prime is 78623862487. The reversal of 78623862477 is 77426832687.

It is an interprime number because it is at equal distance from previous prime (78623862467) and next prime (78623862487).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78623862477 - 2⁴ = 78623862461 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 78623862477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78623862467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17446452 + ... + 17450957.

It is an arithmetic number, because the mean of its divisors is an integer number (13121426160).

Almost surely, 2^78623862477 is an apocalyptic number.

It is an amenable number.

78623862477 is a deficient number, since it is larger than the sum of its proper divisors (26347546803).

78623862477 is a wasteful number, since it uses less digits than its factorization.

78623862477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34898163.

The product of its digits is 37933056, while the sum is 60.

The spelling of 78623862477 in words is "seventy-eight billion, six hundred twenty-three million, eight hundred sixty-two thousand, four hundred seventy-seven".