1078999916 has 12 divisors (see below), whose sum is σ = 1896152160. Its totient is φ = 537242160.

The previous prime is 1078999913. The next prime is 1078999931. The reversal of 1078999916 is 6199998701.

It is not an unprimeable number, because it can be changed into a prime (1078999913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563375 + ... + 565286.

It is an arithmetic number, because the mean of its divisors is an integer number (158012680).

Almost surely, 2^1078999916 is an apocalyptic number.

It is an amenable number.

1078999916 is a deficient number, since it is larger than the sum of its proper divisors (817152244).

1078999916 is a wasteful number, since it uses less digits than its factorization.

1078999916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128904 (or 1128902 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 59.

The square root of 1078999916 is about 32848.1341327023. The cubic root of 1078999916 is about 1025.6687813921.

The spelling of 1078999916 in words is "one billion, seventy-eight million, nine hundred ninety-nine thousand, nine hundred sixteen".