636312042272740 has 24 divisors (see below), whose sum is σ = 1394353344807360. Its totient is φ = 243458520521568.

The previous prime is 636312042272663. The next prime is 636312042272791. The reversal of 636312042272740 is 47272240213636.

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, 691643523750 + ... + 691643524669.

It is an arithmetic number, because the mean of its divisors is an integer number (58098056033640).

Almost surely, 2^{636312042272740} is an apocalyptic number.

It is an amenable number.

636312042272740 is an abundant number, since it is smaller than the sum of its proper divisors (758041302534620).

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

636312042272740 is a wasteful number, since it uses less digits than its factorization.

636312042272740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383287048451 (or 1383287048449 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 636312042272740 in words is "six hundred thirty-six trillion, three hundred twelve billion, forty-two million, two hundred seventy-two thousand, seven hundred forty".