645030140762 has 16 divisors (see below), whose sum is σ = 1109047168320. Its totient is φ = 275621185728.

The previous prime is 645030140761. The next prime is 645030140771. The reversal of 645030140762 is 267041030546.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (645030140761) 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, 68353712 + ... + 68363147.

It is an arithmetic number, because the mean of its divisors is an integer number (69315448020).

Almost surely, 2^645030140762 is an apocalyptic number.

645030140762 is a deficient number, since it is larger than the sum of its proper divisors (464017027558).

645030140762 is a wasteful number, since it uses less digits than its factorization.

645030140762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136717205.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 645030140762 in words is "six hundred forty-five billion, thirty million, one hundred forty thousand, seven hundred sixty-two".