64738745343 has 8 divisors (see below), whose sum is σ = 95909252400. Its totient is φ = 43159163544.

The previous prime is 64738745329. The next prime is 64738745387. The reversal of 64738745343 is 34354783746.

64738745343 is a `hidden beast` number, since 6 + 4 + 7 + 38 + 74 + 534 + 3 = 666.

It is not a de Polignac number, because 64738745343 - 2²⁰ = 64737696767 is a prime.

It is a super-2 number, since 2×64738745343² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64738745343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64738745443) 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, 1198865628 + ... + 1198865681.

It is an arithmetic number, because the mean of its divisors is an integer number (11988656550).

Almost surely, 2^64738745343 is an apocalyptic number.

64738745343 is a deficient number, since it is larger than the sum of its proper divisors (31170507057).

64738745343 is a wasteful number, since it uses less digits than its factorization.

64738745343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397731318 (or 2397731312 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 54.

The spelling of 64738745343 in words is "sixty-four billion, seven hundred thirty-eight million, seven hundred forty-five thousand, three hundred forty-three".