3640877730742 has 24 divisors (see below), whose sum is σ = 6380946769464. Its totient is φ = 1553502256992.

The previous prime is 3640877730713. The next prime is 3640877730827. The reversal of 3640877730742 is 2470377780463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81809943 + ... + 81854434.

It is an arithmetic number, because the mean of its divisors is an integer number (265872782061).

Almost surely, 2^{3640877730742} is an apocalyptic number.

3640877730742 is a deficient number, since it is larger than the sum of its proper divisors (2740069038722).

3640877730742 is a wasteful number, since it uses less digits than its factorization.

3640877730742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163664620 (or 163664613 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 58.

The spelling of 3640877730742 in words is "three trillion, six hundred forty billion, eight hundred seventy-seven million, seven hundred thirty thousand, seven hundred forty-two".