64013833903 has 4 divisors (see below), whose sum is σ = 65743937560. Its totient is φ = 62283730248.

The previous prime is 64013833901. The next prime is 64013833921. The reversal of 64013833903 is 30933831046.

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 64013833903 - 2¹ = 64013833901 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 (64013833901) 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, 865051773 + ... + 865051846.

It is an arithmetic number, because the mean of its divisors is an integer number (16435984390).

Almost surely, 2^64013833903 is an apocalyptic number.

64013833903 is a deficient number, since it is larger than the sum of its proper divisors (1730103657).

64013833903 is a wasteful number, since it uses less digits than its factorization.

64013833903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730103656.

The product of its (nonzero) digits is 139968, while the sum is 40.

It can be divided in two parts, 640138 and 33903, that added together give a square (674041 = 821²).

The spelling of 64013833903 in words is "sixty-four billion, thirteen million, eight hundred thirty-three thousand, nine hundred three".