99631463451 has 8 divisors (see below), whose sum is σ = 143060562960. Its totient is φ = 61311669792.

The previous prime is 99631463447. The next prime is 99631463473. The reversal of 99631463451 is 15436413699.

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

It is not a de Polignac number, because 99631463451 - 2² = 99631463447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99631463394 and 99631463403.

It is not an unprimeable number, because it can be changed into a prime (99631463951) 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 7 ways as a sum of consecutive naturals, for example, 1277326416 + ... + 1277326493.

It is an arithmetic number, because the mean of its divisors is an integer number (17882570370).

Almost surely, 2^99631463451 is an apocalyptic number.

99631463451 is a deficient number, since it is larger than the sum of its proper divisors (43429099509).

99631463451 is a wasteful number, since it uses less digits than its factorization.

99631463451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554652925.

The product of its digits is 2099520, while the sum is 51.

The spelling of 99631463451 in words is "ninety-nine billion, six hundred thirty-one million, four hundred sixty-three thousand, four hundred fifty-one".