10418678681 has 4 divisors (see below), whose sum is σ = 10419666432. Its totient is φ = 10417690932.

The previous prime is 10418678657. The next prime is 10418678693. The reversal of 10418678681 is 18687681401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10418678681 is a prime.

It is a super-2 number, since 2×10418678681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10418678381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477881 + ... + 499206.

It is an arithmetic number, because the mean of its divisors is an integer number (2604916608).

Almost surely, 2^10418678681 is an apocalyptic number.

It is an amenable number.

10418678681 is a deficient number, since it is larger than the sum of its proper divisors (987751).

10418678681 is an equidigital number, since it uses as much as digits as its factorization.

10418678681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987750.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 10418678681 in words is "ten billion, four hundred eighteen million, six hundred seventy-eight thousand, six hundred eighty-one".