64590651537 has 8 divisors (see below), whose sum is σ = 86125918560. Its totient is φ = 43057909440.

The previous prime is 64590651529. The next prime is 64590651583. The reversal of 64590651537 is 73515609546.

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

It is not a de Polignac number, because 64590651537 - 2³ = 64590651529 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 64590651537.

It is not an unprimeable number, because it can be changed into a prime (64590691537) 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, 570712 + ... + 674457.

It is an arithmetic number, because the mean of its divisors is an integer number (10765739820).

Almost surely, 2^64590651537 is an apocalyptic number.

It is an amenable number.

64590651537 is a deficient number, since it is larger than the sum of its proper divisors (21535267023).

64590651537 is a wasteful number, since it uses less digits than its factorization.

64590651537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262463.

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 64590651537 in words is "sixty-four billion, five hundred ninety million, six hundred fifty-one thousand, five hundred thirty-seven".