9400673855431 has 16 divisors (see below), whose sum is σ = 9676730942944. Its totient is φ = 9125797613184.

The previous prime is 9400673855399. The next prime is 9400673855563. The reversal of 9400673855431 is 1345583760049.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9400673855431 - 2⁵ = 9400673855399 is a prime.

It is a super-2 number, since 2×9400673855431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400673855231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28488421 + ... + 28816513.

It is an arithmetic number, because the mean of its divisors is an integer number (604795683934).

Almost surely, 2^{9400673855431} is an apocalyptic number.

9400673855431 is a deficient number, since it is larger than the sum of its proper divisors (276057087513).

9400673855431 is a wasteful number, since it uses less digits than its factorization.

9400673855431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329890.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 9400673855431 in words is "nine trillion, four hundred billion, six hundred seventy-three million, eight hundred fifty-five thousand, four hundred thirty-one".