64749850333 has 12 divisors (see below), whose sum is σ = 76382121312. Its totient is φ = 54718180440.

The previous prime is 64749850313. The next prime is 64749850349. The reversal of 64749850333 is 33305894746.

It is a de Polignac number, because none of the positive numbers 2^k-64749850333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64749850313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9302335 + ... + 9309292.

It is an arithmetic number, because the mean of its divisors is an integer number (6365176776).

Almost surely, 2^64749850333 is an apocalyptic number.

It is an amenable number.

64749850333 is a deficient number, since it is larger than the sum of its proper divisors (11632270979).

64749850333 is a wasteful number, since it uses less digits than its factorization.

64749850333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18611712 (or 18611705 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 64749850333 in words is "sixty-four billion, seven hundred forty-nine million, eight hundred fifty thousand, three hundred thirty-three".