637140254241 has 16 divisors (see below), whose sum is σ = 872128147968. Its totient is φ = 413501212800.

The previous prime is 637140254207. The next prime is 637140254251. The reversal of 637140254241 is 142452041736.

It is not a de Polignac number, because 637140254241 - 2¹¹ = 637140252193 is a prime.

It is a super-2 number, since 2×637140254241² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 637140254241.

It is not an unprimeable number, because it can be changed into a prime (637140254251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5561521 + ... + 5674926.

It is an arithmetic number, because the mean of its divisors is an integer number (54508009248).

Almost surely, 2^637140254241 is an apocalyptic number.

It is an amenable number.

637140254241 is a deficient number, since it is larger than the sum of its proper divisors (234987893727).

637140254241 is a wasteful number, since it uses less digits than its factorization.

637140254241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11236952.

The product of its (nonzero) digits is 161280, while the sum is 39.

Adding to 637140254241 its reverse (142452041736), we get a palindrome (779592295977).

The spelling of 637140254241 in words is "six hundred thirty-seven billion, one hundred forty million, two hundred fifty-four thousand, two hundred forty-one".