1018116457 has 8 divisors (see below), whose sum is σ = 1046344896. Its totient is φ = 989925552.

The previous prime is 1018116409. The next prime is 1018116467. The reversal of 1018116457 is 7546118101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1018116457 is a prime.

It is a super-2 number, since 2×1018116457² = 2073122240028465698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018116467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50898 + ... + 68020.

It is an arithmetic number, because the mean of its divisors is an integer number (130793112).

Almost surely, 2^1018116457 is an apocalyptic number.

It is an amenable number.

1018116457 is a deficient number, since it is larger than the sum of its proper divisors (28228439).

1018116457 is a wasteful number, since it uses less digits than its factorization.

1018116457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18767.

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 1018116457 is about 31907.9372100423. The cubic root of 1018116457 is about 1006.0027143230.

The spelling of 1018116457 in words is "one billion, eighteen million, one hundred sixteen thousand, four hundred fifty-seven".