9142990788 has 24 divisors (see below), whose sum is σ = 21336208992. Its totient is φ = 3047297344.

The previous prime is 9142990757. The next prime is 9142990807. The reversal of 9142990788 is 8870992419.

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, 69931 + ... + 152237.

It is an arithmetic number, because the mean of its divisors is an integer number (889008708).

Almost surely, 2^9142990788 is an apocalyptic number.

It is an amenable number.

9142990788 is an abundant number, since it is smaller than the sum of its proper divisors (12193218204).

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

9142990788 is a wasteful number, since it uses less digits than its factorization.

9142990788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91571 (or 91569 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 57.

The square root of 9142990788 is about 95618.9875913775. The cubic root of 9142990788 is about 2091.0420227582.

The spelling of 9142990788 in words is "nine billion, one hundred forty-two million, nine hundred ninety thousand, seven hundred eighty-eight".