640141460635 has 32 divisors (see below), whose sum is σ = 788038191360. Its totient is φ = 499038960000.

The previous prime is 640141460603. The next prime is 640141460641. The reversal of 640141460635 is 536064141046.

It is a happy number.

It is not a de Polignac number, because 640141460635 - 2⁵ = 640141460603 is a prime.

It is a super-2 number, since 2×640141460635² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15603009 + ... + 15643981.

It is an arithmetic number, because the mean of its divisors is an integer number (24626193480).

Almost surely, 2^640141460635 is an apocalyptic number.

640141460635 is a deficient number, since it is larger than the sum of its proper divisors (147896730725).

640141460635 is a wasteful number, since it uses less digits than its factorization.

640141460635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41499.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 640141460635 in words is "six hundred forty billion, one hundred forty-one million, four hundred sixty thousand, six hundred thirty-five".