81732962059 has 8 divisors (see below), whose sum is σ = 93413622528. Its totient is φ = 70053432360.

The previous prime is 81732962057. The next prime is 81732962063. The reversal of 81732962059 is 95026923718.

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 81732962059 - 2¹ = 81732962057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81732961997 and 81732962015.

It is not an unprimeable number, because it can be changed into a prime (81732962057) 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, 121687 + ... + 422224.

It is an arithmetic number, because the mean of its divisors is an integer number (11676702816).

Almost surely, 2^81732962059 is an apocalyptic number.

81732962059 is a deficient number, since it is larger than the sum of its proper divisors (11680660469).

81732962059 is a wasteful number, since it uses less digits than its factorization.

81732962059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565385.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 81732962059 in words is "eighty-one billion, seven hundred thirty-two million, nine hundred sixty-two thousand, fifty-nine".