4640990479092 has 72 divisors (see below), whose sum is σ = 12883774831200. Its totient is φ = 1396922070720.

The previous prime is 4640990479091. The next prime is 4640990479123. The reversal of 4640990479092 is 2909740990464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640990479091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39268758 + ... + 39386765.

It is an arithmetic number, because the mean of its divisors is an integer number (178941317100).

Almost surely, 2^{4640990479092} is an apocalyptic number.

It is an amenable number.

4640990479092 is an abundant number, since it is smaller than the sum of its proper divisors (8242784352108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4640990479092 is a wasteful number, since it uses less digits than its factorization.

4640990479092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78655693 (or 78655688 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 4640990479092 in words is "four trillion, six hundred forty billion, nine hundred ninety million, four hundred seventy-nine thousand, ninety-two".