64001652637 has 8 divisors (see below), whose sum is σ = 68953336704. Its totient is φ = 59054037168.

The previous prime is 64001652619. The next prime is 64001652713. The reversal of 64001652637 is 73625610046.

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 64001652637 - 2⁷ = 64001652509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64001652637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64001656637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984433 + ... + 1047430.

It is an arithmetic number, because the mean of its divisors is an integer number (8619167088).

Almost surely, 2^64001652637 is an apocalyptic number.

It is an amenable number.

64001652637 is a deficient number, since it is larger than the sum of its proper divisors (4951684067).

64001652637 is a wasteful number, since it uses less digits than its factorization.

64001652637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034299.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 64001652637 in words is "sixty-four billion, one million, six hundred fifty-two thousand, six hundred thirty-seven".