2921344736845 has 8 divisors (see below), whose sum is σ = 3618697996800. Its totient is φ = 2261686247760.

The previous prime is 2921344736819. The next prime is 2921344736879. The reversal of 2921344736845 is 5486374431292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2921344736845 - 2⁵ = 2921344736813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2921344736845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9423692545 + ... + 9423692854.

It is an arithmetic number, because the mean of its divisors is an integer number (452337249600).

Almost surely, 2^{2921344736845} is an apocalyptic number.

It is an amenable number.

2921344736845 is a deficient number, since it is larger than the sum of its proper divisors (697353259955).

2921344736845 is a wasteful number, since it uses less digits than its factorization.

2921344736845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18847385435.

The product of its digits is 34836480, while the sum is 58.

The spelling of 2921344736845 in words is "two trillion, nine hundred twenty-one billion, three hundred forty-four million, seven hundred thirty-six thousand, eight hundred forty-five".