1117278287990 has 16 divisors (see below), whose sum is σ = 2011736796048. Its totient is φ = 446770009056.

The previous prime is 1117278287947. The next prime is 1117278288011. The reversal of 1117278287990 is 997828727111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17630057 + ... + 17693316.

It is an arithmetic number, because the mean of its divisors is an integer number (125733549753).

Almost surely, 2^{1117278287990} is an apocalyptic number.

1117278287990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1117278287990 is a deficient number, since it is larger than the sum of its proper divisors (894458508058).

1117278287990 is a wasteful number, since it uses less digits than its factorization.

1117278287990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35326543.

The product of its (nonzero) digits is 7112448, while the sum is 62.

The spelling of 1117278287990 in words is "one trillion, one hundred seventeen billion, two hundred seventy-eight million, two hundred eighty-seven thousand, nine hundred ninety".