635074891896 has 64 divisors (see below), whose sum is σ = 1597821033600. Its totient is φ = 210342332288.

The previous prime is 635074891889. The next prime is 635074891933. The reversal of 635074891896 is 698198470536.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5428111 + ... + 5543873.

It is an arithmetic number, because the mean of its divisors is an integer number (24965953650).

Almost surely, 2^635074891896 is an apocalyptic number.

It is an amenable number.

635074891896 is an abundant number, since it is smaller than the sum of its proper divisors (962746141704).

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

635074891896 is a wasteful number, since it uses less digits than its factorization.

635074891896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117228 (or 117224 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 66.

The spelling of 635074891896 in words is "six hundred thirty-five billion, seventy-four million, eight hundred ninety-one thousand, eight hundred ninety-six".