1916745699 has 32 divisors (see below), whose sum is σ = 2962669824. Its totient is φ = 1089377280.

The previous prime is 1916745697. The next prime is 1916745703. The reversal of 1916745699 is 9965476191.

It is not a de Polignac number, because 1916745699 - 2¹ = 1916745697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1916745697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152727 + ... + 164799.

It is an arithmetic number, because the mean of its divisors is an integer number (92583432).

Almost surely, 2^1916745699 is an apocalyptic number.

1916745699 is a deficient number, since it is larger than the sum of its proper divisors (1045924125).

1916745699 is a wasteful number, since it uses less digits than its factorization.

1916745699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12387.

The product of its digits is 3674160, while the sum is 57.

The square root of 1916745699 is about 43780.6543920942. The cubic root of 1916745699 is about 1242.1903920850.

The spelling of 1916745699 in words is "one billion, nine hundred sixteen million, seven hundred forty-five thousand, six hundred ninety-nine".