64300157489 has 4 divisors (see below), whose sum is σ = 64423574820. Its totient is φ = 64176740160.

The previous prime is 64300157459. The next prime is 64300157521. The reversal of 64300157489 is 98475100346.

64300157489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15771592225 + 48528565264 = 125585^2 + 220292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64300157489 is a prime.

It is a super-2 number, since 2×64300157489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64300157429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61707884 + ... + 61708925.

It is an arithmetic number, because the mean of its divisors is an integer number (16105893705).

Almost surely, 2^64300157489 is an apocalyptic number.

It is an amenable number.

64300157489 is a deficient number, since it is larger than the sum of its proper divisors (123417331).

64300157489 is a wasteful number, since it uses less digits than its factorization.

64300157489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123417330.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 64300157489 in words is "sixty-four billion, three hundred million, one hundred fifty-seven thousand, four hundred eighty-nine".