28406567862 has 16 divisors (see below), whose sum is σ = 63125706480. Its totient is φ = 9468855936.

The previous prime is 28406567857. The next prime is 28406567897. The reversal of 28406567862 is 26876560482.

It is a super-2 number, since 2×28406567862² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 526047553 = 28406567862 / (2 + 8 + 4 + 0 + 6 + 5 + 6 + 7 + 8 + 6 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 28406567799 and 28406567808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263023723 + ... + 263023830.

It is an arithmetic number, because the mean of its divisors is an integer number (3945356655).

Almost surely, 2^28406567862 is an apocalyptic number.

28406567862 is an abundant number, since it is smaller than the sum of its proper divisors (34719138618).

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

28406567862 is a wasteful number, since it uses less digits than its factorization.

28406567862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526047564 (or 526047558 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 28406567862 in words is "twenty-eight billion, four hundred six million, five hundred sixty-seven thousand, eight hundred sixty-two".