28077127401 has 8 divisors (see below), whose sum is σ = 37994918944. Its totient is φ = 18438710400.

The previous prime is 28077127381. The next prime is 28077127409. The reversal of 28077127401 is 10472177082.

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

It is not a de Polignac number, because 28077127401 - 2¹³ = 28077119209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28077127401.

It is not an unprimeable number, because it can be changed into a prime (28077127409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69843400 + ... + 69843801.

It is an arithmetic number, because the mean of its divisors is an integer number (4749364868).

Almost surely, 2^28077127401 is an apocalyptic number.

It is an amenable number.

28077127401 is a deficient number, since it is larger than the sum of its proper divisors (9917791543).

28077127401 is a wasteful number, since it uses less digits than its factorization.

28077127401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139687271.

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 28077127401 in words is "twenty-eight billion, seventy-seven million, one hundred twenty-seven thousand, four hundred one".