127777421453 has 8 divisors (see below), whose sum is σ = 147593171520. Its totient is φ = 109328274880.

The previous prime is 127777421423. The next prime is 127777421459. The reversal of 127777421453 is 354124777721.

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

It is not a de Polignac number, because 127777421453 - 2¹⁸ = 127777159309 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 (127777421459) 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, 341650673 + ... + 341651046.

It is an arithmetic number, because the mean of its divisors is an integer number (18449146440).

Almost surely, 2^127777421453 is an apocalyptic number.

It is an amenable number.

127777421453 is a deficient number, since it is larger than the sum of its proper divisors (19815750067).

127777421453 is a wasteful number, since it uses less digits than its factorization.

127777421453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683301747.

The product of its digits is 2304960, while the sum is 50.

The spelling of 127777421453 in words is "one hundred twenty-seven billion, seven hundred seventy-seven million, four hundred twenty-one thousand, four hundred fifty-three".