2914805681321 has 2 divisors, whose sum is σ = 2914805681322. Its totient is φ = 2914805681320.

The previous prime is 2914805681311. The next prime is 2914805681339. The reversal of 2914805681321 is 1231865084192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1927890595225 + 986915086096 = 1388485^2 + 993436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2914805681321 is a prime.

It is a super-2 number, since 2×2914805681321² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2914805681321.

It is not a weakly prime, because it can be changed into another prime (2914805681311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1457402840660 + 1457402840661.

It is an arithmetic number, because the mean of its divisors is an integer number (1457402840661).

Almost surely, 2^{2914805681321} is an apocalyptic number.

It is an amenable number.

2914805681321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2914805681321 is an equidigital number, since it uses as much as digits as its factorization.

2914805681321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 2914805681321 in words is "two trillion, nine hundred fourteen billion, eight hundred five million, six hundred eighty-one thousand, three hundred twenty-one".