64225023631 has 8 divisors (see below), whose sum is σ = 66530721600. Its totient is φ = 61954527360.

The previous prime is 64225023617. The next prime is 64225023649. The reversal of 64225023631 is 13632052246.

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

It is a cyclic number.

It is not a de Polignac number, because 64225023631 - 2⁹ = 64225023119 is a prime.

It is a super-2 number, since 2×64225023631² (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 (64225023661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8796711 + ... + 8804008.

It is an arithmetic number, because the mean of its divisors is an integer number (8316340200).

Almost surely, 2^64225023631 is an apocalyptic number.

64225023631 is a deficient number, since it is larger than the sum of its proper divisors (2305697969).

64225023631 is a wasteful number, since it uses less digits than its factorization.

64225023631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600849.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 64225023631 its reverse (13632052246), we get a palindrome (77857075877).

The spelling of 64225023631 in words is "sixty-four billion, two hundred twenty-five million, twenty-three thousand, six hundred thirty-one".