64827048137 has 8 divisors (see below), whose sum is σ = 67171882440. Its totient is φ = 62489508480.

The previous prime is 64827048127. The next prime is 64827048217. The reversal of 64827048137 is 73184072846.

It can be written as a sum of positive squares in 4 ways, for example, as 79192201 + 64747855936 = 8899^2 + 254456^2 .

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 64827048137 - 2²⁰ = 64825999561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64827048127) 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, 1805564 + ... + 1841117.

It is an arithmetic number, because the mean of its divisors is an integer number (8396485305).

Almost surely, 2^64827048137 is an apocalyptic number.

It is an amenable number.

64827048137 is a deficient number, since it is larger than the sum of its proper divisors (2344834303).

64827048137 is a wasteful number, since it uses less digits than its factorization.

64827048137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647323.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 64827048137 in words is "sixty-four billion, eight hundred twenty-seven million, forty-eight thousand, one hundred thirty-seven".