127901388421 has 8 divisors (see below), whose sum is σ = 128606655744. Its totient is φ = 127197297600.

The previous prime is 127901388403. The next prime is 127901388431. The reversal of 127901388421 is 124883109721.

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

It is a cyclic number.

It is not a de Polignac number, because 127901388421 - 2¹⁵ = 127901355653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127901388401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75655 + ... + 511396.

It is an arithmetic number, because the mean of its divisors is an integer number (16075831968).

Almost surely, 2^127901388421 is an apocalyptic number.

It is an amenable number.

127901388421 is a deficient number, since it is larger than the sum of its proper divisors (705267323).

127901388421 is an equidigital number, since it uses as much as digits as its factorization.

127901388421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588251.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 127901388421 in words is "one hundred twenty-seven billion, nine hundred one million, three hundred eighty-eight thousand, four hundred twenty-one".