640142400035 has 8 divisors (see below), whose sum is σ = 808600926480. Its totient is φ = 485160555744.

The previous prime is 640142400019. The next prime is 640142400043. The reversal of 640142400035 is 530004241046.

640142400035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640142400035 - 2⁴ = 640142400019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 640142399980 and 640142400007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3369170432 + ... + 3369170621.

It is an arithmetic number, because the mean of its divisors is an integer number (101075115810).

Almost surely, 2^640142400035 is an apocalyptic number.

640142400035 is a deficient number, since it is larger than the sum of its proper divisors (168458526445).

640142400035 is a wasteful number, since it uses less digits than its factorization.

640142400035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738341077.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 640142400035 in words is "six hundred forty billion, one hundred forty-two million, four hundred thousand, thirty-five".