4640400281812 has 24 divisors (see below), whose sum is σ = 8124625555200. Its totient is φ = 2319078964416.

The previous prime is 4640400281761. The next prime is 4640400281813. The reversal of 4640400281812 is 2181820040464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640400281813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79767328 + ... + 79825480.

It is an arithmetic number, because the mean of its divisors is an integer number (338526064800).

Almost surely, 2^{4640400281812} is an apocalyptic number.

It is an amenable number.

4640400281812 is a deficient number, since it is larger than the sum of its proper divisors (3484225273388).

4640400281812 is a wasteful number, since it uses less digits than its factorization.

4640400281812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67455 (or 67453 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 4640400281812 in words is "four trillion, six hundred forty billion, four hundred million, two hundred eighty-one thousand, eight hundred twelve".