2991429193728 has 208 divisors, whose sum is σ = 8190703289216. Its totient is φ = 970661560320.

The previous prime is 2991429193663. The next prime is 2991429193741. The reversal of 2991429193728 is 8273919241992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72687525 + ... + 72728667.

Almost surely, 2^{2991429193728} 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 2991429193728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4095351644608).

2991429193728 is an abundant number, since it is smaller than the sum of its proper divisors (5199274095488).

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

2991429193728 is an equidigital number, since it uses as much as digits as its factorization.

2991429193728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41328 (or 41306 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 66.

The spelling of 2991429193728 in words is "two trillion, nine hundred ninety-one billion, four hundred twenty-nine million, one hundred ninety-three thousand, seven hundred twenty-eight".