207397539492 has 144 divisors (see below), whose sum is σ = 573446783616. Its totient is φ = 57951590400.

The previous prime is 207397539451. The next prime is 207397539631. The reversal of 207397539492 is 294935793702.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19455828 + ... + 19466484.

Almost surely, 2^207397539492 is an apocalyptic number.

207397539492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207397539492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286723391808).

207397539492 is an abundant number, since it is smaller than the sum of its proper divisors (366049244124).

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

207397539492 is a wasteful number, since it uses less digits than its factorization.

207397539492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 207397539492 in words is "two hundred seven billion, three hundred ninety-seven million, five hundred thirty-nine thousand, four hundred ninety-two".