64755396434 has 8 divisors (see below), whose sum is σ = 97220056908. Its totient is φ = 32348710800.

The previous prime is 64755396367. The next prime is 64755396443. The reversal of 64755396434 is 43469355746.

It can be written as a sum of positive squares in 2 ways, for example, as 48113106409 + 16642290025 = 219347^2 + 129005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64755396434² (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 64755396434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14490917 + ... + 14495384.

Almost surely, 2^64755396434 is an apocalyptic number.

64755396434 is a deficient number, since it is larger than the sum of its proper divisors (32464660474).

64755396434 is a wasteful number, since it uses less digits than its factorization.

64755396434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28987420.

The product of its digits is 32659200, while the sum is 56.

The spelling of 64755396434 in words is "sixty-four billion, seven hundred fifty-five million, three hundred ninety-six thousand, four hundred thirty-four".