85143785476 has 12 divisors (see below), whose sum is σ = 149641118172. Its totient is φ = 42389180288.

The previous prime is 85143785443. The next prime is 85143785501. The reversal of 85143785476 is 67458734158.

It can be written as a sum of positive squares in 2 ways, for example, as 7564824576 + 77578960900 = 86976^2 + 278530^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85143785476.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45677065 + ... + 45678928.

It is an arithmetic number, because the mean of its divisors is an integer number (12470093181).

Almost surely, 2^85143785476 is an apocalyptic number.

It is an amenable number.

85143785476 is a deficient number, since it is larger than the sum of its proper divisors (64497332696).

85143785476 is a wasteful number, since it uses less digits than its factorization.

85143785476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91356230 (or 91356228 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 58.

The spelling of 85143785476 in words is "eighty-five billion, one hundred forty-three million, seven hundred eighty-five thousand, four hundred seventy-six".