127491207228 has 864 divisors, whose sum is σ = 451866159360. Its totient is φ = 30710534400.

The previous prime is 127491207223. The next prime is 127491207247. The reversal of 127491207228 is 822702194721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127491207223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2405494450 + ... + 2405494502.

It is an arithmetic number, because the mean of its divisors is an integer number (522993240).

Almost surely, 2^127491207228 is an apocalyptic number.

127491207228 is a gapful number since it is divisible by the number (18) 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 127491207228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225933079680).

127491207228 is an abundant number, since it is smaller than the sum of its proper divisors (324374952132).

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

127491207228 is a wasteful number, since it uses less digits than its factorization.

127491207228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 127491207228 in words is "one hundred twenty-seven billion, four hundred ninety-one million, two hundred seven thousand, two hundred twenty-eight".