30631421551 has 8 divisors (see below), whose sum is σ = 32246085600. Its totient is φ = 29040329472.

The previous prime is 30631421533. The next prime is 30631421567. The reversal of 30631421551 is 15512413603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30631421551 - 2⁵ = 30631421519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30631421581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5890326 + ... + 5895523.

It is an arithmetic number, because the mean of its divisors is an integer number (4030760700).

Almost surely, 2^30631421551 is an apocalyptic number.

30631421551 is a deficient number, since it is larger than the sum of its proper divisors (1614664049).

30631421551 is a wasteful number, since it uses less digits than its factorization.

30631421551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11785985.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 30631421551 in words is "thirty billion, six hundred thirty-one million, four hundred twenty-one thousand, five hundred fifty-one".