1585836941272 has 16 divisors (see below), whose sum is σ = 2983005183600. Its totient is φ = 790368892320.

The previous prime is 1585836941263. The next prime is 1585836941279. The reversal of 1585836941272 is 2721496385851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1585836941272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1585836941279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318694647 + ... + 318699622.

It is an arithmetic number, because the mean of its divisors is an integer number (186437823975).

Almost surely, 2^{1585836941272} is an apocalyptic number.

It is an amenable number.

1585836941272 is a deficient number, since it is larger than the sum of its proper divisors (1397168242328).

1585836941272 is a wasteful number, since it uses less digits than its factorization.

1585836941272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637394586 (or 637394582 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 61.

The spelling of 1585836941272 in words is "one trillion, five hundred eighty-five billion, eight hundred thirty-six million, nine hundred forty-one thousand, two hundred seventy-two".