127678818780 has 96 divisors (see below), whose sum is σ = 397352390400. Its totient is φ = 34036593984.

The previous prime is 127678818731. The next prime is 127678818791. The reversal of 127678818780 is 87818876721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692711 + ... + 1766529.

It is an arithmetic number, because the mean of its divisors is an integer number (4139087400).

Almost surely, 2^127678818780 is an apocalyptic number.

127678818780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127678818780 is an abundant number, since it is smaller than the sum of its proper divisors (269673571620).

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

127678818780 is a wasteful number, since it uses less digits than its factorization.

127678818780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77040 (or 77032 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 63.

The spelling of 127678818780 in words is "one hundred twenty-seven billion, six hundred seventy-eight million, eight hundred eighteen thousand, seven hundred eighty".