1009791216 has 90 divisors (see below), whose sum is σ = 3287425752. Its totient is φ = 288509760.

The previous prime is 1009791199. The next prime is 1009791227. The reversal of 1009791216 is 6121979001.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 64500 + ... + 78611.

Almost surely, 2^1009791216 is an apocalyptic number.

1009791216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1009791216 is an abundant number, since it is smaller than the sum of its proper divisors (2277634536).

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

1009791216 is a wasteful number, since it uses less digits than its factorization.

1009791216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143139 (or 143123 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1009791216 is about 31777.2122125274. The cubic root of 1009791216 is about 1003.2531442432.

The spelling of 1009791216 in words is "one billion, nine million, seven hundred ninety-one thousand, two hundred sixteen".