2909955317997 has 64 divisors (see below), whose sum is σ = 4991751618560. Its totient is φ = 1466604921600.

The previous prime is 2909955317993. The next prime is 2909955318077. The reversal of 2909955317997 is 7997135599092.

2909955317997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2909955317997 - 2² = 2909955317993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909955317993) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1507654 + ... + 2844807.

It is an arithmetic number, because the mean of its divisors is an integer number (77996119040).

Almost surely, 2^{2909955317997} is an apocalyptic number.

It is an amenable number.

2909955317997 is a deficient number, since it is larger than the sum of its proper divisors (2081796300563).

2909955317997 is a wasteful number, since it uses less digits than its factorization.

2909955317997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352594.

The product of its (nonzero) digits is 434010150, while the sum is 75.

The spelling of 2909955317997 in words is "two trillion, nine hundred nine billion, nine hundred fifty-five million, three hundred seventeen thousand, nine hundred ninety-seven".