478851621207 has 8 divisors (see below), whose sum is σ = 649290334080. Its totient is φ = 313823661240.

The previous prime is 478851621187. The next prime is 478851621229. The reversal of 478851621207 is 702126158874.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-478851621207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478851621207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478851621277) 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, 1352688019 + ... + 1352688372.

It is an arithmetic number, because the mean of its divisors is an integer number (81161291760).

Almost surely, 2^478851621207 is an apocalyptic number.

478851621207 is a deficient number, since it is larger than the sum of its proper divisors (170438712873).

478851621207 is a wasteful number, since it uses less digits than its factorization.

478851621207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705376453.

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 478851621207 in words is "four hundred seventy-eight billion, eight hundred fifty-one million, six hundred twenty-one thousand, two hundred seven".