85811053876421 has 8 divisors (see below), whose sum is σ = 86192468964000. Its totient is φ = 85429952586000.

The previous prime is 85811053876319. The next prime is 85811053876439. The reversal of 85811053876421 is 12467835011858.

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 85811053876421 - 2⁴² = 81413007365317 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 (85811053876021) 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, 77901146 + ... + 78995003.

It is an arithmetic number, because the mean of its divisors is an integer number (10774058620500).

Almost surely, 2^{85811053876421} is an apocalyptic number.

It is an amenable number.

85811053876421 is a deficient number, since it is larger than the sum of its proper divisors (381415087579).

85811053876421 is a wasteful number, since it uses less digits than its factorization.

85811053876421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156898579.

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 85811053876421 in words is "eighty-five trillion, eight hundred eleven billion, fifty-three million, eight hundred seventy-six thousand, four hundred twenty-one".