9621448507 has 16 divisors (see below), whose sum is σ = 10661898240. Its totient is φ = 8609515200.

The previous prime is 9621448477. The next prime is 9621448519. The reversal of 9621448507 is 7058441269.

9621448507 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9621448507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9621448307) 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, 196282 + ... + 240352.

It is an arithmetic number, because the mean of its divisors is an integer number (666368640).

Almost surely, 2^9621448507 is an apocalyptic number.

9621448507 is a deficient number, since it is larger than the sum of its proper divisors (1040449733).

9621448507 is a wasteful number, since it uses less digits than its factorization.

9621448507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44394.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 9621448507 is about 98088.9825974355. The cubic root of 9621448507 is about 2126.8987693624.

The spelling of 9621448507 in words is "nine billion, six hundred twenty-one million, four hundred forty-eight thousand, five hundred seven".