81045829528 has 16 divisors (see below), whose sum is σ = 152008215480. Its totient is φ = 40510305408.

The previous prime is 81045829523. The next prime is 81045829567. The reversal of 81045829528 is 82592854018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81045829523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548826 + ... + 1600297.

Almost surely, 2^81045829528 is an apocalyptic number.

It is an amenable number.

81045829528 is a deficient number, since it is larger than the sum of its proper divisors (70962385952).

81045829528 is a wasteful number, since it uses less digits than its factorization.

81045829528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152346 (or 3152342 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 81045829528 in words is "eighty-one billion, forty-five million, eight hundred twenty-nine thousand, five hundred twenty-eight".