85125758691 has 8 divisors (see below), whose sum is σ = 119474749120. Its totient is φ = 53763637032.

The previous prime is 85125758657. The next prime is 85125758693. The reversal of 85125758691 is 19685752158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85125758691 - 2¹⁷ = 85125627619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 1493434363 = 85125758691 / (8 + 5 + 1 + 2 + 5 + 7 + 5 + 8 + 6 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85125758693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746717125 + ... + 746717238.

It is an arithmetic number, because the mean of its divisors is an integer number (14934343640).

Almost surely, 2^85125758691 is an apocalyptic number.

85125758691 is a deficient number, since it is larger than the sum of its proper divisors (34348990429).

85125758691 is a wasteful number, since it uses less digits than its factorization.

85125758691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493434385.

The product of its digits is 6048000, while the sum is 57.

The spelling of 85125758691 in words is "eighty-five billion, one hundred twenty-five million, seven hundred fifty-eight thousand, six hundred ninety-one".