2116949967 has 24 divisors (see below), whose sum is σ = 3350402640. Its totient is φ = 1277383680.

The previous prime is 2116949959. The next prime is 2116949981. The reversal of 2116949967 is 7699496112.

It is a happy number.

It is not a de Polignac number, because 2116949967 - 2³ = 2116949959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116949957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24018 + ... + 69359.

It is an arithmetic number, because the mean of its divisors is an integer number (139600110).

Almost surely, 2^2116949967 is an apocalyptic number.

2116949967 is a deficient number, since it is larger than the sum of its proper divisors (1233452673).

2116949967 is a wasteful number, since it uses less digits than its factorization.

2116949967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93623 (or 93620 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 2116949967 is about 46010.3245696007. The cubic root of 2116949967 is about 1284.0152977331.

The spelling of 2116949967 in words is "two billion, one hundred sixteen million, nine hundred forty-nine thousand, nine hundred sixty-seven".