3640405461004 has 72 divisors (see below), whose sum is σ = 6957662034960. Its totient is φ = 1665824090112.

The previous prime is 3640405460957. The next prime is 3640405461067. The reversal of 3640405461004 is 4001645040463.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40733712 + ... + 40822984.

It is an arithmetic number, because the mean of its divisors is an integer number (96634194930).

Almost surely, 2^{3640405461004} is an apocalyptic number.

It is an amenable number.

3640405461004 is a deficient number, since it is larger than the sum of its proper divisors (3317256573956).

3640405461004 is a wasteful number, since it uses less digits than its factorization.

3640405461004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89819 (or 89804 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 3640405461004 in words is "three trillion, six hundred forty billion, four hundred five million, four hundred sixty-one thousand, four".