81055950832 has 10 divisors (see below), whose sum is σ = 157045904768. Its totient is φ = 40527975408.

The previous prime is 81055950809. The next prime is 81055950889. The reversal of 81055950832 is 23805955018.

It is a super-3 number, since 3×81055950832³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2532998448 + ... + 2532998479.

Almost surely, 2^81055950832 is an apocalyptic number.

It is an amenable number.

81055950832 is a deficient number, since it is larger than the sum of its proper divisors (75989953936).

81055950832 is a wasteful number, since it uses less digits than its factorization.

81055950832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065996935 (or 5065996929 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 81055950832 in words is "eighty-one billion, fifty-five million, nine hundred fifty thousand, eight hundred thirty-two".