810839655061 has 8 divisors (see below), whose sum is σ = 853695853920. Its totient is φ = 768001498992.

The previous prime is 810839655029. The next prime is 810839655107. The reversal of 810839655061 is 160556938018.

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 810839655061 - 2⁵ = 810839655029 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 (810839655761) 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, 4418395 + ... + 4598248.

It is an arithmetic number, because the mean of its divisors is an integer number (106711981740).

Almost surely, 2^810839655061 is an apocalyptic number.

It is an amenable number.

810839655061 is a deficient number, since it is larger than the sum of its proper divisors (42856198859).

810839655061 is a wasteful number, since it uses less digits than its factorization.

810839655061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021395.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 810839655061 in words is "eight hundred ten billion, eight hundred thirty-nine million, six hundred fifty-five thousand, sixty-one".