286138331352 has 80 divisors (see below), whose sum is σ = 804645765000. Its totient is φ = 94999392000.

The previous prime is 286138331309. The next prime is 286138331407. The reversal of 286138331352 is 253133831682.

286138331352 is a `hidden beast` number, since 28 + 613 + 8 + 3 + 3 + 1 + 3 + 5 + 2 = 666.

It is a super-2 number, since 2×286138331352² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 286138331298 and 286138331307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 716977 + ... + 1042272.

Almost surely, 2^286138331352 is an apocalyptic number.

It is an amenable number.

286138331352 is an abundant number, since it is smaller than the sum of its proper divisors (518507433648).

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

286138331352 is a wasteful number, since it uses less digits than its factorization.

286138331352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759518 (or 1759505 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 286138331352 in words is "two hundred eighty-six billion, one hundred thirty-eight million, three hundred thirty-one thousand, three hundred fifty-two".