85030250781 has 8 divisors (see below), whose sum is σ = 129569905984. Its totient is φ = 48588714720.

The previous prime is 85030250749. The next prime is 85030250839. The reversal of 85030250781 is 18705203058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85030250781 - 2⁵ = 85030250749 is a prime.

It is a super-2 number, since 2×85030250781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85030250581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024529760 + ... + 2024529801.

It is an arithmetic number, because the mean of its divisors is an integer number (16196238248).

Almost surely, 2^85030250781 is an apocalyptic number.

It is an amenable number.

85030250781 is a deficient number, since it is larger than the sum of its proper divisors (44539655203).

85030250781 is a wasteful number, since it uses less digits than its factorization.

85030250781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049059571.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 85030250781 in words is "eighty-five billion, thirty million, two hundred fifty thousand, seven hundred eighty-one".