127424721386 has 8 divisors (see below), whose sum is σ = 191147078784. Its totient is φ = 63709028460.

The previous prime is 127424721383. The next prime is 127424721421. The reversal of 127424721386 is 683127424721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 127424721386.

It is not an unprimeable number, because it can be changed into a prime (127424721383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618040 + ... + 1694963.

It is an arithmetic number, because the mean of its divisors is an integer number (23893384848).

Almost surely, 2^127424721386 is an apocalyptic number.

127424721386 is a deficient number, since it is larger than the sum of its proper divisors (63722357398).

127424721386 is a wasteful number, since it uses less digits than its factorization.

127424721386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332236.

The product of its digits is 903168, while the sum is 47.

The spelling of 127424721386 in words is "one hundred twenty-seven billion, four hundred twenty-four million, seven hundred twenty-one thousand, three hundred eighty-six".