285401640451551 has 16 divisors (see below), whose sum is σ = 409807850167296. Its totient is φ = 175631621692896.

The previous prime is 285401640451537. The next prime is 285401640451559. The reversal of 285401640451551 is 155154046104582.

It is not a de Polignac number, because 285401640451551 - 2¹⁴ = 285401640435167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285401640451494 and 285401640451503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285401640451559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53272566 + ... + 58384668.

It is an arithmetic number, because the mean of its divisors is an integer number (25612990635456).

Almost surely, 2^{285401640451551} is an apocalyptic number.

285401640451551 is a deficient number, since it is larger than the sum of its proper divisors (124406209715745).

285401640451551 is a wasteful number, since it uses less digits than its factorization.

285401640451551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543622.

The product of its (nonzero) digits is 3840000, while the sum is 51.

The spelling of 285401640451551 in words is "two hundred eighty-five trillion, four hundred one billion, six hundred forty million, four hundred fifty-one thousand, five hundred fifty-one".