2291751358208 has 144 divisors (see below), whose sum is σ = 5384499192576. Its totient is φ = 963397877760.

The previous prime is 2291751358199. The next prime is 2291751358291. The reversal of 2291751358208 is 8028531571922.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2291751358208.

It is a congruent number.

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, 1100510 + ... + 2407202.

It is an arithmetic number, because the mean of its divisors is an integer number (37392355504).

Almost surely, 2^{2291751358208} 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 2291751358208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2692249596288).

2291751358208 is an abundant number, since it is smaller than the sum of its proper divisors (3092747834368).

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

2291751358208 is a wasteful number, since it uses less digits than its factorization.

2291751358208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306770 (or 1306756 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 2291751358208 in words is "two trillion, two hundred ninety-one billion, seven hundred fifty-one million, three hundred fifty-eight thousand, two hundred eight".