85040768453 has 8 divisors (see below), whose sum is σ = 86683222008. Its totient is φ = 83399719104.

The previous prime is 85040768443. The next prime is 85040768473. The reversal of 85040768453 is 35486704058.

It can be written as a sum of positive squares in 4 ways, for example, as 9042049 + 85031726404 = 3007^2 + 291602^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85040768453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85040768443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228350 + ... + 471407.

It is an arithmetic number, because the mean of its divisors is an integer number (10835402751).

Almost surely, 2^85040768453 is an apocalyptic number.

It is an amenable number.

85040768453 is a deficient number, since it is larger than the sum of its proper divisors (1642453555).

85040768453 is a wasteful number, since it uses less digits than its factorization.

85040768453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702103.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 85040768453 in words is "eighty-five billion, forty million, seven hundred sixty-eight thousand, four hundred fifty-three".