9148946639 has 8 divisors (see below), whose sum is σ = 10457235360. Its totient is φ = 7840982016.

The previous prime is 9148946623. The next prime is 9148946743. The reversal of 9148946639 is 9366498419.

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

It is not a de Polignac number, because 9148946639 - 2⁴ = 9148946623 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 (9148946039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17174 + ... + 136355.

It is an arithmetic number, because the mean of its divisors is an integer number (1307154420).

Almost surely, 2^9148946639 is an apocalyptic number.

9148946639 is a deficient number, since it is larger than the sum of its proper divisors (1308288721).

9148946639 is a wasteful number, since it uses less digits than its factorization.

9148946639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162049.

The product of its digits is 10077696, while the sum is 59.

The square root of 9148946639 is about 95650.1261839209. The cubic root of 9148946639 is about 2091.4959672707.

The spelling of 9148946639 in words is "nine billion, one hundred forty-eight million, nine hundred forty-six thousand, six hundred thirty-nine".