285051385216477 has 48 divisors (see below), whose sum is σ = 328183730784000. Its totient is φ = 247082411600640.

The previous prime is 285051385216427. The next prime is 285051385216489. The reversal of 285051385216477 is 774612583150582.

It is a de Polignac number, because none of the positive numbers 2^k-285051385216477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285051385216427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128653849 + ... + 130850737.

It is an arithmetic number, because the mean of its divisors is an integer number (6837161058000).

Almost surely, 2^{285051385216477} is an apocalyptic number.

It is an amenable number.

285051385216477 is a deficient number, since it is larger than the sum of its proper divisors (43132345567523).

285051385216477 is a wasteful number, since it uses less digits than its factorization.

285051385216477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197402 (or 2197391 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 64.

The spelling of 285051385216477 in words is "two hundred eighty-five trillion, fifty-one billion, three hundred eighty-five million, two hundred sixteen thousand, four hundred seventy-seven".