8749813465418 has 4 divisors (see below), whose sum is σ = 13124720198130. Its totient is φ = 4374906732708.

The previous prime is 8749813465411. The next prime is 8749813465511. The reversal of 8749813465418 is 8145643189478.

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

It can be written as a sum of positive squares in only one way, i.e., 4738096898089 + 4011716567329 = 2176717^2 + 2002927^2 .

It is a super-2 number, since 2×8749813465418² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8749813465411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2187453366353 + ... + 2187453366356.

Almost surely, 2^{8749813465418} is an apocalyptic number.

8749813465418 is a deficient number, since it is larger than the sum of its proper divisors (4374906732712).

8749813465418 is a wasteful number, since it uses less digits than its factorization.

8749813465418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374906732711.

The product of its digits is 185794560, while the sum is 68.

The spelling of 8749813465418 in words is "eight trillion, seven hundred forty-nine billion, eight hundred thirteen million, four hundred sixty-five thousand, four hundred eighteen".