85300610781 has 16 divisors (see below), whose sum is σ = 118120507200. Its totient is φ = 54708432768.

The previous prime is 85300610729. The next prime is 85300610783. The reversal of 85300610781 is 18701600358.

It is not a de Polignac number, because 85300610781 - 2¹¹ = 85300608733 is a prime.

It is a super-2 number, since 2×85300610781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85300610783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4307391 + ... + 4327148.

It is an arithmetic number, because the mean of its divisors is an integer number (7382531700).

Almost surely, 2^85300610781 is an apocalyptic number.

It is an amenable number.

85300610781 is a deficient number, since it is larger than the sum of its proper divisors (32819896419).

85300610781 is a wasteful number, since it uses less digits than its factorization.

85300610781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634668.

The product of its (nonzero) digits is 40320, while the sum is 39.

It can be divided in two parts, 85300610 and 781, that added together give a triangular number (85301391 = T₁₃₀₆₁).

The spelling of 85300610781 in words is "eighty-five billion, three hundred million, six hundred ten thousand, seven hundred eighty-one".