478902786602497 has 4 divisors (see below), whose sum is σ = 478994337513216. Its totient is φ = 478811235691780.

The previous prime is 478902786602417. The next prime is 478902786602519. The reversal of 478902786602497 is 794206687209874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478902786602497 - 2¹⁵ = 478902786569729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478902786602417) 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, 45775447513 + ... + 45775457974.

It is an arithmetic number, because the mean of its divisors is an integer number (119748584378304).

Almost surely, 2^{478902786602497} is an apocalyptic number.

It is an amenable number.

478902786602497 is a deficient number, since it is larger than the sum of its proper divisors (91550910719).

478902786602497 is an equidigital number, since it uses as much as digits as its factorization.

478902786602497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91550910718.

The product of its (nonzero) digits is 4096770048, while the sum is 79.

The spelling of 478902786602497 in words is "four hundred seventy-eight trillion, nine hundred two billion, seven hundred eighty-six million, six hundred two thousand, four hundred ninety-seven".