137020643260 has 12 divisors (see below), whose sum is σ = 287743350888. Its totient is φ = 54808257296.

The previous prime is 137020643239. The next prime is 137020643261. The reversal of 137020643260 is 62346020731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137020643261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425516062 + ... + 3425516101.

It is an arithmetic number, because the mean of its divisors is an integer number (23978612574).

Almost surely, 2^137020643260 is an apocalyptic number.

137020643260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137020643260 is an abundant number, since it is smaller than the sum of its proper divisors (150722707628).

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

137020643260 is a wasteful number, since it uses less digits than its factorization.

137020643260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851032172 (or 6851032170 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 137020643260 its reverse (62346020731), we get a palindrome (199366663991).

The spelling of 137020643260 in words is "one hundred thirty-seven billion, twenty million, six hundred forty-three thousand, two hundred sixty".