4640041023651 has 48 divisors (see below), whose sum is σ = 7370793061632. Its totient is φ = 2789426376000.

The previous prime is 4640041023647. The next prime is 4640041023701. The reversal of 4640041023651 is 1563201400464.

4640041023651 is a `hidden beast` number, since 4 + 6 + 4 + 0 + 0 + 410 + 236 + 5 + 1 = 666.

It is not a de Polignac number, because 4640041023651 - 2² = 4640041023647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4640041023641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9982941 + ... + 10437393.

It is an arithmetic number, because the mean of its divisors is an integer number (153558188784).

Almost surely, 2^{4640041023651} is an apocalyptic number.

4640041023651 is a deficient number, since it is larger than the sum of its proper divisors (2730752037981).

4640041023651 is a wasteful number, since it uses less digits than its factorization.

4640041023651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455304 (or 455301 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 4640041023651 in words is "four trillion, six hundred forty billion, forty-one million, twenty-three thousand, six hundred fifty-one".