64473312223525 has 12 divisors (see below), whose sum is σ = 82525839647104. Its totient is φ = 49914822366000.

The previous prime is 64473312223511. The next prime is 64473312223531. The reversal of 64473312223525 is 52532221337446.

It is not a de Polignac number, because 64473312223525 - 2⁵ = 64473312223493 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41595684531 + ... + 41595686080.

Almost surely, 2^{64473312223525} is an apocalyptic number.

It is an amenable number.

64473312223525 is a deficient number, since it is larger than the sum of its proper divisors (18052527423579).

64473312223525 is a wasteful number, since it uses less digits than its factorization.

64473312223525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83191370652 (or 83191370647 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 49.

The spelling of 64473312223525 in words is "sixty-four trillion, four hundred seventy-three billion, three hundred twelve million, two hundred twenty-three thousand, five hundred twenty-five".