820269893946 has 32 divisors (see below), whose sum is σ = 1674327421440. Its totient is φ = 267837623856.

The previous prime is 820269893899. The next prime is 820269893951. The reversal of 820269893946 is 649398962028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5627686 + ... + 5771601.

It is an arithmetic number, because the mean of its divisors is an integer number (52322731920).

Almost surely, 2^820269893946 is an apocalyptic number.

820269893946 is an abundant number, since it is smaller than the sum of its proper divisors (854057527494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820269893946 is a wasteful number, since it uses less digits than its factorization.

820269893946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399538.

The product of its (nonzero) digits is 80621568, while the sum is 66.

The spelling of 820269893946 in words is "eight hundred twenty billion, two hundred sixty-nine million, eight hundred ninety-three thousand, nine hundred forty-six".