9148797840 has 640 divisors, whose sum is σ = 36397670400. Its totient is φ = 1888524288.

The previous prime is 9148797821. The next prime is 9148797893. The reversal of 9148797840 is 487978419.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 88823229 + ... + 88823331.

It is an arithmetic number, because the mean of its divisors is an integer number (56871360).

Almost surely, 2^9148797840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9148797840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18198835200).

9148797840 is an abundant number, since it is smaller than the sum of its proper divisors (27248872560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9148797840 is a wasteful number, since it uses less digits than its factorization.

9148797840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The square root of 9148797840 is about 95649.3483511519. The cubic root of 9148797840 is about 2091.4846284719.

The spelling of 9148797840 in words is "nine billion, one hundred forty-eight million, seven hundred ninety-seven thousand, eight hundred forty".