3640338644294 has 16 divisors (see below), whose sum is σ = 6069312458640. Its totient is φ = 1623478640160.

The previous prime is 3640338644291. The next prime is 3640338644309. The reversal of 3640338644294 is 4924468330463.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640338644291) 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, 1561035989 + ... + 1561038320.

It is an arithmetic number, because the mean of its divisors is an integer number (379332028665).

Almost surely, 2^{3640338644294} is an apocalyptic number.

3640338644294 is a deficient number, since it is larger than the sum of its proper divisors (2428973814346).

3640338644294 is a wasteful number, since it uses less digits than its factorization.

3640338644294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122074375.

The product of its (nonzero) digits is 35831808, while the sum is 56.

The spelling of 3640338644294 in words is "three trillion, six hundred forty billion, three hundred thirty-eight million, six hundred forty-four thousand, two hundred ninety-four".