85846443787 has 12 divisors (see below), whose sum is σ = 98426103480. Its totient is φ = 74581523328.

The previous prime is 85846443779. The next prime is 85846443797. The reversal of 85846443787 is 78734464858.

It is not a de Polignac number, because 85846443787 - 2³ = 85846443779 is a prime.

It is a super-2 number, since 2×85846443787² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85846443797) 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, 14937337 + ... + 14943082.

It is an arithmetic number, because the mean of its divisors is an integer number (8202175290).

Almost surely, 2^85846443787 is an apocalyptic number.

85846443787 is a deficient number, since it is larger than the sum of its proper divisors (12579659693).

85846443787 is a wasteful number, since it uses less digits than its factorization.

85846443787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29880462 (or 29880449 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 64.

The spelling of 85846443787 in words is "eighty-five billion, eight hundred forty-six million, four hundred forty-three thousand, seven hundred eighty-seven".