1117687679578 has 8 divisors (see below), whose sum is σ = 1677419048340. Its totient is φ = 558547996800.

The previous prime is 1117687679557. The next prime is 1117687679599. The reversal of 1117687679578 is 8759767867111.

It is an interprime number because it is at equal distance from previous prime (1117687679557) and next prime (1117687679599).

It can be written as a sum of positive squares in 2 ways, for example, as 1076412475009 + 41275204569 = 1037503^2 + 203163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1117687679578.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147916773 + ... + 147924328.

Almost surely, 2^{1117687679578} is an apocalyptic number.

1117687679578 is a deficient number, since it is larger than the sum of its proper divisors (559731368762).

1117687679578 is a wasteful number, since it uses less digits than its factorization.

1117687679578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295842992.

The product of its digits is 248935680, while the sum is 73.

The spelling of 1117687679578 in words is "one trillion, one hundred seventeen billion, six hundred eighty-seven million, six hundred seventy-nine thousand, five hundred seventy-eight".