479725871397 has 4 divisors (see below), whose sum is σ = 639634495200. Its totient is φ = 319817247596.

The previous prime is 479725871389. The next prime is 479725871447. The reversal of 479725871397 is 793178527974.

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 479725871397 - 2³ = 479725871389 is a prime.

It is a super-2 number, since 2×479725871397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479725871497) 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, 79954311897 + ... + 79954311902.

It is an arithmetic number, because the mean of its divisors is an integer number (159908623800).

Almost surely, 2^479725871397 is an apocalyptic number.

It is an amenable number.

479725871397 is a deficient number, since it is larger than the sum of its proper divisors (159908623803).

479725871397 is a wasteful number, since it uses less digits than its factorization.

479725871397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159908623802.

The product of its digits is 186701760, while the sum is 69.

The spelling of 479725871397 in words is "four hundred seventy-nine billion, seven hundred twenty-five million, eight hundred seventy-one thousand, three hundred ninety-seven".