85639702743 has 12 divisors (see below), whose sum is σ = 141373477648. Its totient is φ = 48936972960.

The previous prime is 85639702721. The next prime is 85639702769. The reversal of 85639702743 is 34720793658.

85639702743 is a `hidden beast` number, since 8 + 563 + 9 + 7 + 0 + 2 + 74 + 3 = 666.

It is not a de Polignac number, because 85639702743 - 2⁵ = 85639702711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85639702743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85639700743) 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, 679680118 + ... + 679680243.

Almost surely, 2^85639702743 is an apocalyptic number.

85639702743 is a deficient number, since it is larger than the sum of its proper divisors (55733774905).

85639702743 is a wasteful number, since it uses less digits than its factorization.

85639702743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359360374 (or 1359360371 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 85639702743 in words is "eighty-five billion, six hundred thirty-nine million, seven hundred two thousand, seven hundred forty-three".