28874588501 has 8 divisors (see below), whose sum is σ = 31648840608. Its totient is φ = 26125218000.

The previous prime is 28874588473. The next prime is 28874588503. The reversal of 28874588501 is 10588547882.

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 a de Polignac number, because none of the positive numbers 2^k-28874588501 is a prime.

It is a super-2 number, since 2×28874588501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874588503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6217970 + ... + 6222611.

It is an arithmetic number, because the mean of its divisors is an integer number (3956105076).

Almost surely, 2^28874588501 is an apocalyptic number.

It is an amenable number.

28874588501 is a deficient number, since it is larger than the sum of its proper divisors (2774252107).

28874588501 is a wasteful number, since it uses less digits than its factorization.

28874588501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12440803.

The product of its (nonzero) digits is 5734400, while the sum is 56.

The spelling of 28874588501 in words is "twenty-eight billion, eight hundred seventy-four million, five hundred eighty-eight thousand, five hundred one".