85465199250 has 128 divisors (see below), whose sum is σ = 243430237440. Its totient is φ = 22174689600.

The previous prime is 85465199249. The next prime is 85465199251. The reversal of 85465199250 is 5299156458.

85465199250 is a `hidden beast` number, since 8 + 546 + 5 + 1 + 9 + 92 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (85465199249) and next prime (85465199251).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (85465199251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78649 + ... + 420851.

It is an arithmetic number, because the mean of its divisors is an integer number (1901798730).

Almost surely, 2^85465199250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85465199250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121715118720).

85465199250 is an abundant number, since it is smaller than the sum of its proper divisors (157965038190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85465199250 is a wasteful number, since it uses less digits than its factorization.

85465199250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342266 (or 342250 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 54.

The spelling of 85465199250 in words is "eighty-five billion, four hundred sixty-five million, one hundred ninety-nine thousand, two hundred fifty".