85880144021 has 8 divisors (see below), whose sum is σ = 98243208960. Its totient is φ = 73540697328.

The previous prime is 85880143991. The next prime is 85880144023. The reversal of 85880144021 is 12044108858.

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

It is not a de Polignac number, because 85880144021 - 2²² = 85875949717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85880144021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85880144023) 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, 5896766 + ... + 5911311.

It is an arithmetic number, because the mean of its divisors is an integer number (12280401120).

Almost surely, 2^85880144021 is an apocalyptic number.

It is an amenable number.

85880144021 is a deficient number, since it is larger than the sum of its proper divisors (12363064939).

85880144021 is a wasteful number, since it uses less digits than its factorization.

85880144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11809123.

The product of its (nonzero) digits is 81920, while the sum is 41.

The spelling of 85880144021 in words is "eighty-five billion, eight hundred eighty million, one hundred forty-four thousand, twenty-one".