127361989494 has 64 divisors (see below), whose sum is σ = 293154785280. Its totient is φ = 40944134880.

The previous prime is 127361989481. The next prime is 127361989501. The reversal of 127361989494 is 494989163721.

127361989494 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 61 + 9 + 89 + 494 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360649 + ... + 620315.

It is an arithmetic number, because the mean of its divisors is an integer number (4580543520).

Almost surely, 2^127361989494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127361989494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146577392640).

127361989494 is an abundant number, since it is smaller than the sum of its proper divisors (165792795786).

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

127361989494 is a wasteful number, since it uses less digits than its factorization.

127361989494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260002 (or 259996 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 127361989494 in words is "one hundred twenty-seven billion, three hundred sixty-one million, nine hundred eighty-nine thousand, four hundred ninety-four".