2909894932272 has 30 divisors (see below), whose sum is σ = 7517259106068. Its totient is φ = 969961037952.

The previous prime is 2909894932249. The next prime is 2909894932277. The reversal of 2909894932272 is 2722394989092.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2909894932277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11695308 + ... + 11941524.

Almost surely, 2^{2909894932272} is an apocalyptic number.

It is an amenable number.

2909894932272 is an abundant number, since it is smaller than the sum of its proper divisors (4607364173796).

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

2909894932272 is an frugal number, since it uses more digits than its factorization.

2909894932272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492445 (or 246222 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 66.

The spelling of 2909894932272 in words is "two trillion, nine hundred nine billion, eight hundred ninety-four million, nine hundred thirty-two thousand, two hundred seventy-two".