1011709994 has 4 divisors (see below), whose sum is σ = 1517564994. Its totient is φ = 505854996.

The previous prime is 1011709961. The next prime is 1011709997. The reversal of 1011709994 is 4999071101.

1011709994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4999071101 = 557 ⋅8974993.

It can be written as a sum of positive squares in only one way, i.e., 837813025 + 173896969 = 28945^2 + 13187^2 .

It is a super-2 number, since 2×1011709994² = 2047114223918960072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011709997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252927497 + ... + 252927500.

Almost surely, 2^1011709994 is an apocalyptic number.

1011709994 is a deficient number, since it is larger than the sum of its proper divisors (505855000).

1011709994 is an equidigital number, since it uses as much as digits as its factorization.

1011709994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505854999.

The product of its (nonzero) digits is 20412, while the sum is 41.

The square root of 1011709994 is about 31807.3889843225. The cubic root of 1011709994 is about 1003.8881936892. Note that the first 3 decimals are identical.

The spelling of 1011709994 in words is "one billion, eleven million, seven hundred nine thousand, nine hundred ninety-four".