1516819806 has 12 divisors (see below), whose sum is σ = 3286442952. Its totient is φ = 505606596.

The previous prime is 1516819783. The next prime is 1516819819. The reversal of 1516819806 is 6089186151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42133866 + ... + 42133901.

It is an arithmetic number, because the mean of its divisors is an integer number (273870246).

Almost surely, 2^1516819806 is an apocalyptic number.

1516819806 is an abundant number, since it is smaller than the sum of its proper divisors (1769623146).

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

1516819806 is a wasteful number, since it uses less digits than its factorization.

1516819806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84267775 (or 84267772 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 1516819806 is about 38946.3708964006. The cubic root of 1516819806 is about 1148.9769871342.

The spelling of 1516819806 in words is "one billion, five hundred sixteen million, eight hundred nineteen thousand, eight hundred six".