285497884671 has 8 divisors (see below), whose sum is σ = 385878419760. Its totient is φ = 187724636352.

The previous prime is 285497884631. The next prime is 285497884697. The reversal of 285497884671 is 176488794582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285497884671 - 2⁹ = 285497884159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285497884596 and 285497884605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285497884631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651821436 + ... + 651821873.

It is an arithmetic number, because the mean of its divisors is an integer number (48234802470).

Almost surely, 2^285497884671 is an apocalyptic number.

285497884671 is a deficient number, since it is larger than the sum of its proper divisors (100380535089).

285497884671 is a wasteful number, since it uses less digits than its factorization.

285497884671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303643385.

The product of its digits is 216760320, while the sum is 69.

The spelling of 285497884671 in words is "two hundred eighty-five billion, four hundred ninety-seven million, eight hundred eighty-four thousand, six hundred seventy-one".