85539247790 has 32 divisors (see below), whose sum is σ = 160733030400. Its totient is φ = 32714206624.

The previous prime is 85539247777. The next prime is 85539247823. The reversal of 85539247790 is 9774293558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474257 + ... + 629283.

It is an arithmetic number, because the mean of its divisors is an integer number (5022907200).

Almost surely, 2^85539247790 is an apocalyptic number.

85539247790 is a deficient number, since it is larger than the sum of its proper divisors (75193782610).

85539247790 is a wasteful number, since it uses less digits than its factorization.

85539247790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157456.

The product of its (nonzero) digits is 19051200, while the sum is 59.

The spelling of 85539247790 in words is "eighty-five billion, five hundred thirty-nine million, two hundred forty-seven thousand, seven hundred ninety".