81270848 has 28 divisors (see below), whose sum is σ = 164012880. Its totient is φ = 39944832.

The previous prime is 81270823. The next prime is 81270859. The reversal of 81270848 is 84807218.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6986 + ... + 14537.

Almost surely, 2^81270848 is an apocalyptic number.

It is an amenable number.

81270848 is an abundant number, since it is smaller than the sum of its proper divisors (82742032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81270848 is a wasteful number, since it uses less digits than its factorization.

81270848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21594 (or 21584 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 81270848 is about 9015.0345534557. The cubic root of 81270848 is about 433.1565943288.

The spelling of 81270848 in words is "eighty-one million, two hundred seventy thousand, eight hundred forty-eight".