85970741497 has 4 divisors (see below), whose sum is σ = 91027843956. Its totient is φ = 80913639040.

The previous prime is 85970741489. The next prime is 85970741503. The reversal of 85970741497 is 79414707958.

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 73717137081 + 12253604416 = 271509^2 + 110696^2 .

It is a cyclic number.

It is not a de Polignac number, because 85970741497 - 2³ = 85970741489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85970741447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528551204 + ... + 2528551237.

It is an arithmetic number, because the mean of its divisors is an integer number (22756960989).

Almost surely, 2^85970741497 is an apocalyptic number.

It is an amenable number.

85970741497 is a deficient number, since it is larger than the sum of its proper divisors (5057102459).

85970741497 is a wasteful number, since it uses less digits than its factorization.

85970741497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057102458.

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 85970741497 in words is "eighty-five billion, nine hundred seventy million, seven hundred forty-one thousand, four hundred ninety-seven".