127970139918 has 32 divisors (see below), whose sum is σ = 269506598400. Its totient is φ = 40397256576.

The previous prime is 127970139877. The next prime is 127970139991. The reversal of 127970139918 is 819931079721.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124843 + ... + 521081.

It is an arithmetic number, because the mean of its divisors is an integer number (8422081200).

Almost surely, 2^127970139918 is an apocalyptic number.

127970139918 is an abundant number, since it is smaller than the sum of its proper divisors (141536458482).

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

127970139918 is a wasteful number, since it uses less digits than its factorization.

127970139918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399096.

The product of its (nonzero) digits is 1714608, while the sum is 57.

The spelling of 127970139918 in words is "one hundred twenty-seven billion, nine hundred seventy million, one hundred thirty-nine thousand, nine hundred eighteen".