285267747122 has 18 divisors (see below), whose sum is σ = 438134128767. Its totient is φ = 139300944636.

The previous prime is 285267747113. The next prime is 285267747131. The reversal of 285267747122 is 221747762582.

It is an interprime number because it is at equal distance from previous prime (285267747113) and next prime (285267747131).

It can be written as a sum of positive squares in only one way, i.e., 142633873561 + 142633873561 = 377669^2 + 377669^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=377669.

It is a super-2 number, since 2×285267747122² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32475143 + ... + 32483925.

Almost surely, 2^285267747122 is an apocalyptic number.

285267747122 is a deficient number, since it is larger than the sum of its proper divisors (152866381645).

285267747122 is an frugal number, since it uses more digits than its factorization.

285267747122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654 (or 8828 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 53.

The spelling of 285267747122 in words is "two hundred eighty-five billion, two hundred sixty-seven million, seven hundred forty-seven thousand, one hundred twenty-two".