46664454431 has 4 divisors (see below), whose sum is σ = 53330805072. Its totient is φ = 39998103792.

The previous prime is 46664454413. The next prime is 46664454439. The reversal of 46664454431 is 13445446664.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46664454431 - 2²⁶ = 46597345567 is a prime.

It is a super-2 number, since 2×46664454431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46664454439) 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, 3333175310 + ... + 3333175323.

It is an arithmetic number, because the mean of its divisors is an integer number (13332701268).

Almost surely, 2^46664454431 is an apocalyptic number.

46664454431 is a deficient number, since it is larger than the sum of its proper divisors (6666350641).

46664454431 is an equidigital number, since it uses as much as digits as its factorization.

46664454431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666350640.

The product of its digits is 3317760, while the sum is 47.

The spelling of 46664454431 in words is "forty-six billion, six hundred sixty-four million, four hundred fifty-four thousand, four hundred thirty-one".