137811723780 has 48 divisors (see below), whose sum is σ = 406181926080. Its totient is φ = 34815593088.

The previous prime is 137811723773. The next prime is 137811723781. The reversal of 137811723780 is 87327118731.

It is a super-2 number, since 2×137811723780² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137811723781) 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, 60442599 + ... + 60444878.

It is an arithmetic number, because the mean of its divisors is an integer number (8462123460).

Almost surely, 2^137811723780 is an apocalyptic number.

137811723780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137811723780 is an abundant number, since it is smaller than the sum of its proper divisors (268370202300).

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

137811723780 is a wasteful number, since it uses less digits than its factorization.

137811723780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120887508 (or 120887506 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 48.

The spelling of 137811723780 in words is "one hundred thirty-seven billion, eight hundred eleven million, seven hundred twenty-three thousand, seven hundred eighty".