127272727920 has 160 divisors (see below), whose sum is σ = 432097344000. Its totient is φ = 30797632512.

The previous prime is 127272727903. The next prime is 127272727921. The reversal of 127272727920 is 29727272721.

It is a super-3 number, since 3×127272727920³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 127272727920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127272727921) 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, 161620 + ... + 529779.

It is an arithmetic number, because the mean of its divisors is an integer number (2700608400).

Almost surely, 2^127272727920 is an apocalyptic number.

127272727920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127272727920 is an abundant number, since it is smaller than the sum of its proper divisors (304824616080).

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

127272727920 is a wasteful number, since it uses less digits than its factorization.

127272727920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691487 (or 691481 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 48.

The spelling of 127272727920 in words is "one hundred twenty-seven billion, two hundred seventy-two million, seven hundred twenty-seven thousand, nine hundred twenty".