127720261494 has 48 divisors (see below), whose sum is σ = 332904948480. Its totient is φ = 34570897200.

The previous prime is 127720261451. The next prime is 127720261541. The reversal of 127720261494 is 494162027721.

127720261494 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 20 + 2 + 614 + 9 + 4 = 666.

It is a super-2 number, since 2×127720261494² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26672682 + ... + 26677469.

It is an arithmetic number, because the mean of its divisors is an integer number (6935519760).

Almost surely, 2^127720261494 is an apocalyptic number.

127720261494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

127720261494 is an abundant number, since it is smaller than the sum of its proper divisors (205184686986).

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

127720261494 is a wasteful number, since it uses less digits than its factorization.

127720261494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53350185 (or 53350182 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 127720261494 in words is "one hundred twenty-seven billion, seven hundred twenty million, two hundred sixty-one thousand, four hundred ninety-four".