423656577379 has 32 divisors (see below), whose sum is σ = 503528449536. Its totient is φ = 348873972480.

The previous prime is 423656577371. The next prime is 423656577389. The reversal of 423656577379 is 973775656324.

It is a cyclic number.

It is not a de Polignac number, because 423656577379 - 2³ = 423656577371 is a prime.

It is a super-2 number, since 2×423656577379² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423656577379.

It is not an unprimeable number, because it can be changed into a prime (423656577371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51094224 + ... + 51102514.

It is an arithmetic number, because the mean of its divisors is an integer number (15735264048).

Almost surely, 2^423656577379 is an apocalyptic number.

423656577379 is a deficient number, since it is larger than the sum of its proper divisors (79871872157).

423656577379 is a wasteful number, since it uses less digits than its factorization.

423656577379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10795.

The product of its digits is 200037600, while the sum is 64.

The spelling of 423656577379 in words is "four hundred twenty-three billion, six hundred fifty-six million, five hundred seventy-seven thousand, three hundred seventy-nine".