80285210520861 has 8 divisors (see below), whose sum is σ = 107060465128320. Its totient is φ = 53516714796992.

The previous prime is 80285210520841. The next prime is 80285210520869. The reversal of 80285210520861 is 16802501258208.

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 80285210520861 - 2⁹ = 80285210520349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80285210520861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80285210520869) 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, 1689693180 + ... + 1689740693.

It is an arithmetic number, because the mean of its divisors is an integer number (13382558141040).

Almost surely, 2^{80285210520861} is an apocalyptic number.

It is an amenable number.

80285210520861 is a deficient number, since it is larger than the sum of its proper divisors (26775254607459).

80285210520861 is a wasteful number, since it uses less digits than its factorization.

80285210520861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379441795.

The product of its (nonzero) digits is 614400, while the sum is 48.

The spelling of 80285210520861 in words is "eighty trillion, two hundred eighty-five billion, two hundred ten million, five hundred twenty thousand, eight hundred sixty-one".