64572450485 has 16 divisors (see below), whose sum is σ = 80058785664. Its totient is φ = 49966725312.

The previous prime is 64572450479. The next prime is 64572450511. The reversal of 64572450485 is 58405427546.

64572450485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64572450485 - 2⁴ = 64572450469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1435802 + ... + 1480091.

It is an arithmetic number, because the mean of its divisors is an integer number (5003674104).

Almost surely, 2^64572450485 is an apocalyptic number.

It is an amenable number.

64572450485 is a deficient number, since it is larger than the sum of its proper divisors (15486335179).

64572450485 is a wasteful number, since it uses less digits than its factorization.

64572450485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916044.

The product of its (nonzero) digits is 5376000, while the sum is 50.

The spelling of 64572450485 in words is "sixty-four billion, five hundred seventy-two million, four hundred fifty thousand, four hundred eighty-five".