823537461582051 has 32 divisors (see below), whose sum is σ = 1103474367706368. Its totient is φ = 546318587295360.

The previous prime is 823537461581999. The next prime is 823537461582079. The reversal of 823537461582051 is 150285164735328.

It is not a de Polignac number, because 823537461582051 - 2⁹ = 823537461581539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (823537461582851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9661694205 + ... + 9661779441.

It is an arithmetic number, because the mean of its divisors is an integer number (34483573990824).

Almost surely, 2^{823537461582051} is an apocalyptic number.

823537461582051 is a deficient number, since it is larger than the sum of its proper divisors (279936906124317).

823537461582051 is a wasteful number, since it uses less digits than its factorization.

823537461582051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102131.

The product of its (nonzero) digits is 48384000, while the sum is 60.

The spelling of 823537461582051 in words is "eight hundred twenty-three trillion, five hundred thirty-seven billion, four hundred sixty-one million, five hundred eighty-two thousand, fifty-one".