9139454648 has 32 divisors (see below), whose sum is σ = 17718568560. Its totient is φ = 4416587520.

The previous prime is 9139454633. The next prime is 9139454663. The reversal of 9139454648 is 8464549319.

It is an interprime number because it is at equal distance from previous prime (9139454633) and next prime (9139454663).

It is a self number, because there is not a number n which added to its sum of digits gives 9139454648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95111 + ... + 165302.

Almost surely, 2^9139454648 is an apocalyptic number.

It is an amenable number.

9139454648 is a deficient number, since it is larger than the sum of its proper divisors (8579113912).

9139454648 is a wasteful number, since it uses less digits than its factorization.

9139454648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260567 (or 260563 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 9139454648 is about 95600.4950196389. The cubic root of 9139454648 is about 2090.7724110970.

The spelling of 9139454648 in words is "nine billion, one hundred thirty-nine million, four hundred fifty-four thousand, six hundred forty-eight".