28100021483771 has 8 divisors (see below), whose sum is σ = 28163227219200. Its totient is φ = 28036818514432.

The previous prime is 28100021483761. The next prime is 28100021483797. The reversal of 28100021483771 is 17738412000182.

It is a happy number.

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 28100021483771 - 2²⁶ = 28099954374907 is a prime.

It is a super-2 number, since 2×28100021483771² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28100021483701) 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, 20369126 + ... + 21704868.

It is an arithmetic number, because the mean of its divisors is an integer number (3520403402400).

Almost surely, 2^{28100021483771} is an apocalyptic number.

28100021483771 is a deficient number, since it is larger than the sum of its proper divisors (63205735429).

28100021483771 is a wasteful number, since it uses less digits than its factorization.

28100021483771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383045.

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 28100021483771 in words is "twenty-eight trillion, one hundred billion, twenty-one million, four hundred eighty-three thousand, seven hundred seventy-one".