855466015439 has 12 divisors (see below), whose sum is σ = 995149309968. Its totient is φ = 733245256800.

The previous prime is 855466015373. The next prime is 855466015441. The reversal of 855466015439 is 934510664558.

It is a de Polignac number, because none of the positive numbers 2^k-855466015439 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 (852466015439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5205254 + ... + 5367084.

It is an arithmetic number, because the mean of its divisors is an integer number (82929109164).

Almost surely, 2^855466015439 is an apocalyptic number.

855466015439 is a deficient number, since it is larger than the sum of its proper divisors (139683294529).

855466015439 is a wasteful number, since it uses less digits than its factorization.

855466015439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269726 (or 269719 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 855466015439 in words is "eight hundred fifty-five billion, four hundred sixty-six million, fifteen thousand, four hundred thirty-nine".