127932495390 has 128 divisors (see below), whose sum is σ = 402466775040. Its totient is φ = 28298419200.

The previous prime is 127932495367. The next prime is 127932495433. The reversal of 127932495390 is 93594239721.

127932495390 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 3 + 249 + 5 + 390 = 666.

It is a super-3 number, since 3×127932495390³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1033171 + ... + 1150350.

It is an arithmetic number, because the mean of its divisors is an integer number (3144271680).

Almost surely, 2^127932495390 is an apocalyptic number.

127932495390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127932495390 is an abundant number, since it is smaller than the sum of its proper divisors (274534279650).

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

127932495390 is a wasteful number, since it uses less digits than its factorization.

127932495390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183575 (or 2183569 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 127932495390 in words is "one hundred twenty-seven billion, nine hundred thirty-two million, four hundred ninety-five thousand, three hundred ninety".