619699994 has 16 divisors (see below), whose sum is σ = 993625920. Its totient is φ = 289148640.

The previous prime is 619699987. The next prime is 619700021. The reversal of 619699994 is 499996916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162404 + ... + 166175.

It is an arithmetic number, because the mean of its divisors is an integer number (62101620).

Almost surely, 2^619699994 is an apocalyptic number.

619699994 is a deficient number, since it is larger than the sum of its proper divisors (373925926).

619699994 is a wasteful number, since it uses less digits than its factorization.

619699994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328645.

The product of its digits is 8503056, while the sum is 62.

The square root of 619699994 is about 24893.7742015951. The cubic root of 619699994 is about 852.5643408237.

The spelling of 619699994 in words is "six hundred nineteen million, six hundred ninety-nine thousand, nine hundred ninety-four".