85747379811 has 16 divisors (see below), whose sum is σ = 116453046528. Its totient is φ = 56107332000.

The previous prime is 85747379803. The next prime is 85747379819. The reversal of 85747379811 is 11897374758.

It is an interprime number because it is at equal distance from previous prime (85747379803) and next prime (85747379819).

It is not a de Polignac number, because 85747379811 - 2³ = 85747379803 is a prime.

It is a super-2 number, since 2×85747379811² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85747379819) 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, 416215 + ... + 587136.

It is an arithmetic number, because the mean of its divisors is an integer number (7278315408).

Almost surely, 2^85747379811 is an apocalyptic number.

85747379811 is a deficient number, since it is larger than the sum of its proper divisors (30705666717).

85747379811 is a wasteful number, since it uses less digits than its factorization.

85747379811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003882.

The product of its digits is 11854080, while the sum is 60.

The spelling of 85747379811 in words is "eighty-five billion, seven hundred forty-seven million, three hundred seventy-nine thousand, eight hundred eleven".