478697869807 has 2 divisors, whose sum is σ = 478697869808. Its totient is φ = 478697869806.

The previous prime is 478697869763. The next prime is 478697869823. The reversal of 478697869807 is 708968796874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478697869807 - 2²⁷ = 478563652079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478697869607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239348934903 + 239348934904.

It is an arithmetic number, because the mean of its divisors is an integer number (239348934904).

Almost surely, 2^478697869807 is an apocalyptic number.

478697869807 is a deficient number, since it is larger than the sum of its proper divisors (1).

478697869807 is an equidigital number, since it uses as much as digits as its factorization.

478697869807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048385024, while the sum is 79.

The spelling of 478697869807 in words is "four hundred seventy-eight billion, six hundred ninety-seven million, eight hundred sixty-nine thousand, eight hundred seven".