64242769375 has 10 divisors (see below), whose sum is σ = 80277765392. Its totient is φ = 51394215000.

The previous prime is 64242769373. The next prime is 64242769397. The reversal of 64242769375 is 57396724246.

It is not a de Polignac number, because 64242769375 - 2¹ = 64242769373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64242769373) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51393591 + ... + 51394840.

Almost surely, 2^64242769375 is an apocalyptic number.

64242769375 is a deficient number, since it is larger than the sum of its proper divisors (16034996017).

64242769375 is an equidigital number, since it uses as much as digits as its factorization.

64242769375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102788451 (or 102788436 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 55.

The spelling of 64242769375 in words is "sixty-four billion, two hundred forty-two million, seven hundred sixty-nine thousand, three hundred seventy-five".