3640743421708 has 6 divisors (see below), whose sum is σ = 6371300987996. Its totient is φ = 1820371710852.

The previous prime is 3640743421697. The next prime is 3640743421717. The reversal of 3640743421708 is 8071243470463.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455092927710 + ... + 455092927717.

Almost surely, 2^{3640743421708} is an apocalyptic number.

It is an amenable number.

3640743421708 is a deficient number, since it is larger than the sum of its proper divisors (2730557566288).

3640743421708 is a wasteful number, since it uses less digits than its factorization.

3640743421708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910185855431 (or 910185855429 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 3640743421708 in words is "three trillion, six hundred forty billion, seven hundred forty-three million, four hundred twenty-one thousand, seven hundred eight".