1111640087979 has 6 divisors (see below), whose sum is σ = 1605702349316. Its totient is φ = 741093391980.

The previous prime is 1111640087977. The next prime is 1111640087981. The reversal of 1111640087979 is 9797800461111.

It is an interprime number because it is at equal distance from previous prime (1111640087977) and next prime (1111640087981).

It is not a de Polignac number, because 1111640087979 - 2¹ = 1111640087977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111640087977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61757782657 + ... + 61757782674.

Almost surely, 2^{1111640087979} is an apocalyptic number.

1111640087979 is a deficient number, since it is larger than the sum of its proper divisors (494062261337).

1111640087979 is a wasteful number, since it uses less digits than its factorization.

1111640087979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123515565337 (or 123515565334 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 54.

The spelling of 1111640087979 in words is "one trillion, one hundred eleven billion, six hundred forty million, eighty-seven thousand, nine hundred seventy-nine".