28424257862 has 96 divisors (see below), whose sum is σ = 59088439872. Its totient is φ = 9972864000.

The previous prime is 28424257861. The next prime is 28424257949. The reversal of 28424257862 is 26875242482.

It is a super-2 number, since 2×28424257862² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28424257862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28424257861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 887162 + ... + 918642.

It is an arithmetic number, because the mean of its divisors is an integer number (615504582).

Almost surely, 2^28424257862 is an apocalyptic number.

28424257862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28424257862 is an abundant number, since it is smaller than the sum of its proper divisors (30664182010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28424257862 is a wasteful number, since it uses less digits than its factorization.

28424257862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31566 (or 31555 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 50.

The spelling of 28424257862 in words is "twenty-eight billion, four hundred twenty-four million, two hundred fifty-seven thousand, eight hundred sixty-two".