81051676 has 12 divisors (see below), whose sum is σ = 144166120. Its totient is φ = 39861360.

The previous prime is 81051673. The next prime is 81051703. The reversal of 81051676 is 67615018.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81051671) 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, 165846 + ... + 166333.

Almost surely, 2^81051676 is an apocalyptic number.

It is an amenable number.

81051676 is a deficient number, since it is larger than the sum of its proper divisors (63114444).

81051676 is a wasteful number, since it uses less digits than its factorization.

81051676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332244 (or 332242 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 81051676 is about 9002.8704311458. The cubic root of 81051676 is about 432.7668634935.

The spelling of 81051676 in words is "eighty-one million, fifty-one thousand, six hundred seventy-six".