8431406694 has 32 divisors (see below), whose sum is σ = 18790496640. Its totient is φ = 2802363336.

The previous prime is 8431406689. The next prime is 8431406699. The reversal of 8431406694 is 4966041348.

8431406694 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8431406689) and next prime (8431406699).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8431406699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206244 + ... + 243719.

It is an arithmetic number, because the mean of its divisors is an integer number (587203020).

Almost surely, 2^8431406694 is an apocalyptic number.

8431406694 is an abundant number, since it is smaller than the sum of its proper divisors (10359089946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8431406694 is a wasteful number, since it uses less digits than its factorization.

8431406694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450321 (or 450315 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 8431406694 is about 91822.6916072492. The cubic root of 8431406694 is about 2035.3230269571.

The spelling of 8431406694 in words is "eight billion, four hundred thirty-one million, four hundred six thousand, six hundred ninety-four".