127774974506 has 16 divisors (see below), whose sum is σ = 194934902400. Its totient is φ = 62796939648.

The previous prime is 127774974497. The next prime is 127774974533. The reversal of 127774974506 is 605479477721.

It is a super-2 number, since 2×127774974506² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966746 + ... + 1090938.

It is an arithmetic number, because the mean of its divisors is an integer number (12183431400).

Almost surely, 2^127774974506 is an apocalyptic number.

127774974506 is a deficient number, since it is larger than the sum of its proper divisors (67159927894).

127774974506 is a wasteful number, since it uses less digits than its factorization.

127774974506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132973.

The product of its (nonzero) digits is 20744640, while the sum is 59.

The spelling of 127774974506 in words is "one hundred twenty-seven billion, seven hundred seventy-four million, nine hundred seventy-four thousand, five hundred six".