127254749742 has 48 divisors (see below), whose sum is σ = 281056583808. Its totient is φ = 41597799360.

The previous prime is 127254749723. The next prime is 127254749747. The reversal of 127254749742 is 247947452721.

127254749742 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 547 + 4 + 97 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127254749747) 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 23 ways as a sum of consecutive naturals, for example, 2011363 + ... + 2073665.

It is an arithmetic number, because the mean of its divisors is an integer number (5855345496).

Almost surely, 2^127254749742 is an apocalyptic number.

127254749742 is an abundant number, since it is smaller than the sum of its proper divisors (153801834066).

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

127254749742 is a wasteful number, since it uses less digits than its factorization.

127254749742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64505 (or 64502 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 127254749742 in words is "one hundred twenty-seven billion, two hundred fifty-four million, seven hundred forty-nine thousand, seven hundred forty-two".