127955557390 has 32 divisors (see below), whose sum is σ = 230926762080. Its totient is φ = 51047478144.

The previous prime is 127955557363. The next prime is 127955557421. The reversal of 127955557390 is 93755559721.

It is a super-2 number, since 2×127955557390² (a number of 23 digits) contains 22 as substring.

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, 20538796 + ... + 20545024.

It is an arithmetic number, because the mean of its divisors is an integer number (7216461315).

Almost surely, 2^127955557390 is an apocalyptic number.

127955557390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127955557390 is a deficient number, since it is larger than the sum of its proper divisors (102971204690).

127955557390 is a wasteful number, since it uses less digits than its factorization.

127955557390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316.

The product of its (nonzero) digits is 14883750, while the sum is 58.

The spelling of 127955557390 in words is "one hundred twenty-seven billion, nine hundred fifty-five million, five hundred fifty-seven thousand, three hundred ninety".