127081680726 has 64 divisors (see below), whose sum is σ = 341254319616. Its totient is φ = 30469132800.

The previous prime is 127081680679. The next prime is 127081680727. The reversal of 127081680726 is 627086180721.

It is a super-2 number, since 2×127081680726² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127081680727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10573555 + ... + 10585566.

It is an arithmetic number, because the mean of its divisors is an integer number (5332098744).

Almost surely, 2^127081680726 is an apocalyptic number.

127081680726 is an abundant number, since it is smaller than the sum of its proper divisors (214172638890).

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

127081680726 is a wasteful number, since it uses less digits than its factorization.

127081680726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159157.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 127081680726 in words is "one hundred twenty-seven billion, eighty-one million, six hundred eighty thousand, seven hundred twenty-six".