64522567851 has 24 divisors (see below), whose sum is σ = 104426947584. Its totient is φ = 35266991760.

The previous prime is 64522567829. The next prime is 64522567853. The reversal of 64522567851 is 15876522546.

It is not a de Polignac number, because 64522567851 - 2¹⁰ = 64522566827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64522567794 and 64522567803.

It is not an unprimeable number, because it can be changed into a prime (64522567853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9538555 + ... + 9545316.

It is an arithmetic number, because the mean of its divisors is an integer number (4351122816).

Almost surely, 2^64522567851 is an apocalyptic number.

64522567851 is a deficient number, since it is larger than the sum of its proper divisors (39904379733).

64522567851 is a wasteful number, since it uses less digits than its factorization.

64522567851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19083911 (or 19083904 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 51.

The spelling of 64522567851 in words is "sixty-four billion, five hundred twenty-two million, five hundred sixty-seven thousand, eight hundred fifty-one".