285511372152 has 32 divisors (see below), whose sum is σ = 713791582800. Its totient is φ = 95168703744.

The previous prime is 285511372103. The next prime is 285511372171. The reversal of 285511372152 is 251273115582.

It is a super-2 number, since 2×285511372152² (a number of 24 digits) contains 22 as substring.

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, 2311218 + ... + 2431614.

Almost surely, 2^285511372152 is an apocalyptic number.

It is an amenable number.

285511372152 is an abundant number, since it is smaller than the sum of its proper divisors (428280210648).

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

285511372152 is a wasteful number, since it uses less digits than its factorization.

285511372152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219215 (or 219211 counting only the distinct ones).

The product of its digits is 168000, while the sum is 42.

The spelling of 285511372152 in words is "two hundred eighty-five billion, five hundred eleven million, three hundred seventy-two thousand, one hundred fifty-two".