85465797747 has 12 divisors (see below), whose sum is σ = 125255660040. Its totient is φ = 51797452960.

The previous prime is 85465797743. The next prime is 85465797761. The reversal of 85465797747 is 74779756458.

It is not a de Polignac number, because 85465797747 - 2² = 85465797743 is a prime.

It is a super-2 number, since 2×85465797747² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85465797743) 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, 117721122 + ... + 117721847.

It is an arithmetic number, because the mean of its divisors is an integer number (10437971670).

Almost surely, 2^85465797747 is an apocalyptic number.

85465797747 is a deficient number, since it is larger than the sum of its proper divisors (39789862293).

85465797747 is a wasteful number, since it uses less digits than its factorization.

85465797747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235442994 (or 235442983 counting only the distinct ones).

The product of its digits is 414892800, while the sum is 69.

The spelling of 85465797747 in words is "eighty-five billion, four hundred sixty-five million, seven hundred ninety-seven thousand, seven hundred forty-seven".