812261161015 has 8 divisors (see below), whose sum is σ = 1032049475280. Its totient is φ = 611584874112.

The previous prime is 812261160941. The next prime is 812261161021. The reversal of 812261161015 is 510161162218.

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 812261161015 - 2¹¹ = 812261158967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4778006745 + ... + 4778006914.

It is an arithmetic number, because the mean of its divisors is an integer number (129006184410).

Almost surely, 2^812261161015 is an apocalyptic number.

812261161015 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

812261161015 is a deficient number, since it is larger than the sum of its proper divisors (219788314265).

812261161015 is a wasteful number, since it uses less digits than its factorization.

812261161015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9556013681.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 812261161015 in words is "eight hundred twelve billion, two hundred sixty-one million, one hundred sixty-one thousand, fifteen".