85835851961 has 8 divisors (see below), whose sum is σ = 90357146880. Its totient is φ = 81314918928.

The previous prime is 85835851957. The next prime is 85835851987. The reversal of 85835851961 is 16915853858.

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

It is a cyclic number.

It is not a de Polignac number, because 85835851961 - 2² = 85835851957 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 85835851961.

It is not an unprimeable number, because it can be changed into a prime (85835851901) 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, 492920 + ... + 643926.

It is an arithmetic number, because the mean of its divisors is an integer number (11294643360).

Almost surely, 2^85835851961 is an apocalyptic number.

It is an amenable number.

85835851961 is a deficient number, since it is larger than the sum of its proper divisors (4521294919).

85835851961 is a wasteful number, since it uses less digits than its factorization.

85835851961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180943.

The product of its digits is 10368000, while the sum is 59.

The spelling of 85835851961 in words is "eighty-five billion, eight hundred thirty-five million, eight hundred fifty-one thousand, nine hundred sixty-one".