85290757945 has 4 divisors (see below), whose sum is σ = 102348909540. Its totient is φ = 68232606352.

The previous prime is 85290757891. The next prime is 85290757969. The reversal of 85290757945 is 54975709258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33394273081 + 51896484864 = 182741^2 + 227808^2 .

It is a cyclic number.

It is not a de Polignac number, because 85290757945 - 2¹⁹ = 85290233657 is a prime.

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, 8529075790 + ... + 8529075799.

It is an arithmetic number, because the mean of its divisors is an integer number (25587227385).

Almost surely, 2^85290757945 is an apocalyptic number.

It is an amenable number.

85290757945 is a deficient number, since it is larger than the sum of its proper divisors (17058151595).

85290757945 is a wasteful number, since it uses less digits than its factorization.

85290757945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17058151594.

The product of its (nonzero) digits is 31752000, while the sum is 61.

The spelling of 85290757945 in words is "eighty-five billion, two hundred ninety million, seven hundred fifty-seven thousand, nine hundred forty-five".