5408666666431 has 4 divisors (see below), whose sum is σ = 6181333333072. Its totient is φ = 4635999999792.

The previous prime is 5408666666423. The next prime is 5408666666437. The reversal of 5408666666431 is 1346666668045.

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

It is not a de Polignac number, because 5408666666431 - 2³ = 5408666666423 is a prime.

It is a super-2 number, since 2×5408666666431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5408666666431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5408666666437) 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, 386333333310 + ... + 386333333323.

It is an arithmetic number, because the mean of its divisors is an integer number (1545333333268).

Almost surely, 2^{5408666666431} is an apocalyptic number.

5408666666431 is a deficient number, since it is larger than the sum of its proper divisors (772666666641).

5408666666431 is an equidigital number, since it uses as much as digits as its factorization.

5408666666431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772666666640.

The product of its (nonzero) digits is 89579520, while the sum is 61.

The spelling of 5408666666431 in words is "five trillion, four hundred eight billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred thirty-one".