640100361833113 has 4 divisors (see below), whose sum is σ = 642847573686708. Its totient is φ = 637353149979520.

The previous prime is 640100361833081. The next prime is 640100361833131. The reversal of 640100361833113 is 311338163001046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311088214362249 + 329012147470864 = 17637693^2 + 18138692^2 .

It is a cyclic number.

It is not a de Polignac number, because 640100361833113 - 2⁵ = 640100361833081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640100361833173) 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, 1373605926448 + ... + 1373605926913.

It is an arithmetic number, because the mean of its divisors is an integer number (160711893421677).

Almost surely, 2^{640100361833113} is an apocalyptic number.

It is an amenable number.

640100361833113 is a deficient number, since it is larger than the sum of its proper divisors (2747211853595).

640100361833113 is a wasteful number, since it uses less digits than its factorization.

640100361833113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747211853594.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 640100361833113 in words is "six hundred forty trillion, one hundred billion, three hundred sixty-one million, eight hundred thirty-three thousand, one hundred thirteen".