425607163971 has 16 divisors (see below), whose sum is σ = 619082386560. Its totient is φ = 257936477120.

The previous prime is 425607163921. The next prime is 425607163999. The reversal of 425607163971 is 179361706524.

It is a cyclic number.

It is not a de Polignac number, because 425607163971 - 2⁹ = 425607163459 is a prime.

It is a super-2 number, since 2×425607163971² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425607163921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156156 + ... + 1479158.

It is an arithmetic number, because the mean of its divisors is an integer number (38692649160).

Almost surely, 2^425607163971 is an apocalyptic number.

425607163971 is a deficient number, since it is larger than the sum of its proper divisors (193475222589).

425607163971 is a wasteful number, since it uses less digits than its factorization.

425607163971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362946.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 425607163971 in words is "four hundred twenty-five billion, six hundred seven million, one hundred sixty-three thousand, nine hundred seventy-one".