80722519650 has 48 divisors (see below), whose sum is σ = 222435391200. Its totient is φ = 21526004880.

The previous prime is 80722519637. The next prime is 80722519739. The reversal of 80722519650 is 5691522708.

80722519650 is a `hidden beast` number, since 8 + 0 + 72 + 2 + 519 + 65 + 0 = 666.

It is a super-2 number, since 2×80722519650² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 80722519596 and 80722519605.

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, 29895880 + ... + 29898579.

It is an arithmetic number, because the mean of its divisors is an integer number (4634070650).

Almost surely, 2^80722519650 is an apocalyptic number.

80722519650 is an abundant number, since it is smaller than the sum of its proper divisors (141712871550).

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

80722519650 is a wasteful number, since it uses less digits than its factorization.

80722519650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59794480 (or 59794469 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 80722519650 in words is "eighty billion, seven hundred twenty-two million, five hundred nineteen thousand, six hundred fifty".