85382347747 has 16 divisors (see below), whose sum is σ = 89569928448. Its totient is φ = 81235424160.

The previous prime is 85382347657. The next prime is 85382347751. The reversal of 85382347747 is 74774328358.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85382347747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85382347691 and 85382347700.

It is not an unprimeable number, because it can be changed into a prime (85382347147) 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, 3705153 + ... + 3728125.

It is an arithmetic number, because the mean of its divisors is an integer number (5598120528).

Almost surely, 2^85382347747 is an apocalyptic number.

85382347747 is a deficient number, since it is larger than the sum of its proper divisors (4187580701).

85382347747 is a wasteful number, since it uses less digits than its factorization.

85382347747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23850.

The product of its digits is 31610880, while the sum is 58.

The spelling of 85382347747 in words is "eighty-five billion, three hundred eighty-two million, three hundred forty-seven thousand, seven hundred forty-seven".