64312849607 has 4 divisors (see below), whose sum is σ = 64563094416. Its totient is φ = 64062604800.

The previous prime is 64312849589. The next prime is 64312849609. The reversal of 64312849607 is 70694821346.

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

It is a cyclic number.

It is not a de Polignac number, because 64312849607 - 2¹⁴ = 64312833223 is a prime.

It is a super-2 number, since 2×64312849607² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64312849609) 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, 125122019 + ... + 125122532.

It is an arithmetic number, because the mean of its divisors is an integer number (16140773604).

Almost surely, 2^64312849607 is an apocalyptic number.

64312849607 is a deficient number, since it is larger than the sum of its proper divisors (250244809).

64312849607 is a wasteful number, since it uses less digits than its factorization.

64312849607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250244808.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 64312849607 in words is "sixty-four billion, three hundred twelve million, eight hundred forty-nine thousand, six hundred seven".