137220857762 has 8 divisors (see below), whose sum is σ = 207652802796. Its totient is φ = 68003256832.

The previous prime is 137220857731. The next prime is 137220857789. The reversal of 137220857762 is 267758022731.

It can be written as a sum of positive squares in 2 ways, for example, as 104924814241 + 32296043521 = 323921^2 + 179711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 137220857762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303585743 + ... + 303586194.

Almost surely, 2^137220857762 is an apocalyptic number.

137220857762 is a deficient number, since it is larger than the sum of its proper divisors (70431945034).

137220857762 is a wasteful number, since it uses less digits than its factorization.

137220857762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607172052.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 137220857762 in words is "one hundred thirty-seven billion, two hundred twenty million, eight hundred fifty-seven thousand, seven hundred sixty-two".