1117458878977 has 32 divisors (see below), whose sum is σ = 1311587794944. Its totient is φ = 932359032000.

The previous prime is 1117458878929. The next prime is 1117458878981. The reversal of 1117458878977 is 7798788547111.

It is a cyclic number.

It is not a de Polignac number, because 1117458878977 - 2¹⁵ = 1117458846209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1117458878177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13485123 + ... + 13567735.

It is an arithmetic number, because the mean of its divisors is an integer number (40987118592).

Almost surely, 2^{1117458878977} is an apocalyptic number.

It is an amenable number.

1117458878977 is a deficient number, since it is larger than the sum of its proper divisors (194128915967).

1117458878977 is a wasteful number, since it uses less digits than its factorization.

1117458878977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83029.

The product of its digits is 221276160, while the sum is 73.

The spelling of 1117458878977 in words is "one trillion, one hundred seventeen billion, four hundred fifty-eight million, eight hundred seventy-eight thousand, nine hundred seventy-seven".