127736806780 has 48 divisors (see below), whose sum is σ = 295921473120. Its totient is φ = 45927833600.

The previous prime is 127736806721. The next prime is 127736806811. The reversal of 127736806780 is 87608637721.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3242341 + ... + 3281500.

It is an arithmetic number, because the mean of its divisors is an integer number (6165030690).

Almost surely, 2^127736806780 is an apocalyptic number.

127736806780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127736806780 is an abundant number, since it is smaller than the sum of its proper divisors (168184666340).

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

127736806780 is a wasteful number, since it uses less digits than its factorization.

127736806780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523950 (or 6523948 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 127736806780 in words is "one hundred twenty-seven billion, seven hundred thirty-six million, eight hundred six thousand, seven hundred eighty".