640022461035 has 32 divisors (see below), whose sum is σ = 1028866778688. Its totient is φ = 339738347520.

The previous prime is 640022461031. The next prime is 640022461081. The reversal of 640022461035 is 530164220046.

640022461035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 640022461035 - 2² = 640022461031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 640022460987 and 640022461005.

It is not an unprimeable number, because it can be changed into a prime (640022461031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3000279 + ... + 3206511.

It is an arithmetic number, because the mean of its divisors is an integer number (32152086834).

Almost surely, 2^640022461035 is an apocalyptic number.

640022461035 is a deficient number, since it is larger than the sum of its proper divisors (388844317653).

640022461035 is a wasteful number, since it uses less digits than its factorization.

640022461035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207215.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 640022461035 in words is "six hundred forty billion, twenty-two million, four hundred sixty-one thousand, thirty-five".