637309489132 has 12 divisors (see below), whose sum is σ = 1134194853960. Its totient is φ = 313253816576.

The previous prime is 637309489013. The next prime is 637309489163. The reversal of 637309489132 is 231984903736.

637309489132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×637309489132² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350231733 + ... + 1350232204.

It is an arithmetic number, because the mean of its divisors is an integer number (94516237830).

Almost surely, 2^637309489132 is an apocalyptic number.

It is an amenable number.

637309489132 is a deficient number, since it is larger than the sum of its proper divisors (496885364828).

637309489132 is a wasteful number, since it uses less digits than its factorization.

637309489132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700464000 (or 2700463998 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 637309489132 in words is "six hundred thirty-seven billion, three hundred nine million, four hundred eighty-nine thousand, one hundred thirty-two".