127227491391000 has 1536 divisors, whose sum is σ = 540322536499200. Its totient is φ = 24252535296000.

The previous prime is 127227491390981. The next prime is 127227491391031. The reversal of 127227491391000 is 193194722721.

It is a super-2 number, since 2×127227491391000² (a number of 29 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 383 ways as a sum of consecutive naturals, for example, 5384367186 + ... + 5384390814.

It is an arithmetic number, because the mean of its divisors is an integer number (351772484700).

Almost surely, 2^{127227491391000} is an apocalyptic number.

127227491391000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127227491391000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270161268249600).

127227491391000 is an abundant number, since it is smaller than the sum of its proper divisors (413095045108200).

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

127227491391000 is a wasteful number, since it uses less digits than its factorization.

127227491391000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23858 (or 23833 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 127227491391000 in words is "one hundred twenty-seven trillion, two hundred twenty-seven billion, four hundred ninety-one million, three hundred ninety-one thousand".