28491983262 has 12 divisors (see below), whose sum is σ = 61732630440. Its totient is φ = 9497327748.

The previous prime is 28491983207. The next prime is 28491983321. The reversal of 28491983262 is 26238919482.

28491983262 is a `hidden beast` number, since 2 + 8 + 491 + 98 + 3 + 2 + 62 = 666.

It is a super-2 number, since 2×28491983262² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28491983199 and 28491983208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 791443962 + ... + 791443997.

It is an arithmetic number, because the mean of its divisors is an integer number (5144385870).

Almost surely, 2^28491983262 is an apocalyptic number.

28491983262 is an abundant number, since it is smaller than the sum of its proper divisors (33240647178).

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

28491983262 is a wasteful number, since it uses less digits than its factorization.

28491983262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582887967 (or 1582887964 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

It can be divided in two parts, 28491 and 983262, that added together give a triangular number (1011753 = T₁₄₂₂).

The spelling of 28491983262 in words is "twenty-eight billion, four hundred ninety-one million, nine hundred eighty-three thousand, two hundred sixty-two".