1111690637479 has 4 divisors (see below), whose sum is σ = 1111746161560. Its totient is φ = 1111635113400.

The previous prime is 1111690637461. The next prime is 1111690637527. The reversal of 1111690637479 is 9747360961111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111690637479 - 2²¹ = 1111688540327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111690637429) 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, 27731997 + ... + 27772054.

It is an arithmetic number, because the mean of its divisors is an integer number (277936540390).

Almost surely, 2^{1111690637479} is an apocalyptic number.

1111690637479 is a deficient number, since it is larger than the sum of its proper divisors (55524081).

1111690637479 is an equidigital number, since it uses as much as digits as its factorization.

1111690637479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55524080.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The spelling of 1111690637479 in words is "one trillion, one hundred eleven billion, six hundred ninety million, six hundred thirty-seven thousand, four hundred seventy-nine".