8935542785 has 32 divisors (see below), whose sum is σ = 11959345440. Its totient is φ = 6363721728.

The previous prime is 8935542731. The next prime is 8935542797. The reversal of 8935542785 is 5872455398.

It is a happy number.

It is a Cunningham number, because it is equal to 94528²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 3303490576 + 5632052209 = 57476^2 + 75047^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8935542785 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8935542785.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2058137 + ... + 2062473.

It is an arithmetic number, because the mean of its divisors is an integer number (373729545).

Almost surely, 2^8935542785 is an apocalyptic number.

It is an amenable number.

8935542785 is a deficient number, since it is larger than the sum of its proper divisors (3023802655).

8935542785 is a wasteful number, since it uses less digits than its factorization.

8935542785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its digits is 12096000, while the sum is 56.

The square root of 8935542785 is about 94528.0000052894. Note that the first 5 decimals coincide. The cubic root of 8935542785 is about 2075.1061278278.

The spelling of 8935542785 in words is "eight billion, nine hundred thirty-five million, five hundred forty-two thousand, seven hundred eighty-five".