1916662797 has 32 divisors (see below), whose sum is σ = 3306389760. Its totient is φ = 1074565440.

The previous prime is 1916662771. The next prime is 1916662817. The reversal of 1916662797 is 7972666191.

It is not a de Polignac number, because 1916662797 - 2⁸ = 1916662541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916662717) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 85654 + ... + 105687.

It is an arithmetic number, because the mean of its divisors is an integer number (103324680).

Almost surely, 2^1916662797 is an apocalyptic number.

It is an amenable number.

1916662797 is a deficient number, since it is larger than the sum of its proper divisors (1389726963).

1916662797 is a wasteful number, since it uses less digits than its factorization.

1916662797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191410 (or 191404 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 1916662797 is about 43779.7075938157. The cubic root of 1916662797 is about 1242.1724829883.

The spelling of 1916662797 in words is "one billion, nine hundred sixteen million, six hundred sixty-two thousand, seven hundred ninety-seven".