81050288760 has 96 divisors (see below), whose sum is σ = 301043939040. Its totient is φ = 18525779712.

The previous prime is 81050288719. The next prime is 81050288881. The reversal of 81050288760 is 6788205018.

81050288760 is a `hidden beast` number, since 8 + 1 + 0 + 502 + 8 + 87 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16078887 + ... + 16083926.

It is an arithmetic number, because the mean of its divisors is an integer number (3135874365).

Almost surely, 2^81050288760 is an apocalyptic number.

It is an amenable number.

81050288760 is an abundant number, since it is smaller than the sum of its proper divisors (219993650280).

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

81050288760 is a wasteful number, since it uses less digits than its factorization.

81050288760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32162837 (or 32162830 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 81050288760 in words is "eighty-one billion, fifty million, two hundred eighty-eight thousand, seven hundred sixty".