85561101287 has 8 divisors (see below), whose sum is σ = 88552966800. Its totient is φ = 82572001344.

The previous prime is 85561101281. The next prime is 85561101319. The reversal of 85561101287 is 78210116558.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85561101287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85561101281) 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, 628337 + ... + 752282.

It is an arithmetic number, because the mean of its divisors is an integer number (11069120850).

Almost surely, 2^85561101287 is an apocalyptic number.

85561101287 is a deficient number, since it is larger than the sum of its proper divisors (2991865513).

85561101287 is a wasteful number, since it uses less digits than its factorization.

85561101287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382785.

The product of its (nonzero) digits is 134400, while the sum is 44.

The spelling of 85561101287 in words is "eighty-five billion, five hundred sixty-one million, one hundred one thousand, two hundred eighty-seven".