127806518140 has 96 divisors (see below), whose sum is σ = 321729085440. Its totient is φ = 41727861504.

The previous prime is 127806518113. The next prime is 127806518149. The reversal of 127806518140 is 41815608721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127806518149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19020 + ... + 505939.

It is an arithmetic number, because the mean of its divisors is an integer number (3351344640).

Almost surely, 2^127806518140 is an apocalyptic number.

127806518140 is a gapful number since it is divisible by the number (10) 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 127806518140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160864542720).

127806518140 is an abundant number, since it is smaller than the sum of its proper divisors (193922567300).

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

127806518140 is a wasteful number, since it uses less digits than its factorization.

127806518140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525059 (or 525057 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 127806518140 in words is "one hundred twenty-seven billion, eight hundred six million, five hundred eighteen thousand, one hundred forty".