3734640798639 has 16 divisors (see below), whose sum is σ = 4996492633440. Its totient is φ = 2481288104960.

The previous prime is 3734640798593. The next prime is 3734640798643. The reversal of 3734640798639 is 9368970464373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3734640798639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3734640798139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550122 + ... + 2787815.

It is an arithmetic number, because the mean of its divisors is an integer number (312280789590).

Almost surely, 2^{3734640798639} is an apocalyptic number.

3734640798639 is a deficient number, since it is larger than the sum of its proper divisors (1261851834801).

3734640798639 is a wasteful number, since it uses less digits than its factorization.

3734640798639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339210.

The product of its (nonzero) digits is 493807104, while the sum is 69.

The spelling of 3734640798639 in words is "three trillion, seven hundred thirty-four billion, six hundred forty million, seven hundred ninety-eight thousand, six hundred thirty-nine".