2914398679921 has 3 divisors (see below), whose sum is σ = 2914400387083. Its totient is φ = 2914396972760.

The previous prime is 2914398679813. The next prime is 2914398679937. The reversal of 2914398679921 is 1299768934192.

The square root of 2914398679921 is 1707161.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2798390319921 + 116008360000 = 1672839^2 + 340600^2 .

It is not a de Polignac number, because 2914398679921 - 2⁷ = 2914398679793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2914398679421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 853581 + ... + 2560741.

Almost surely, 2^{2914398679921} is an apocalyptic number.

2914398679921 is the 1707161-st square number.

2914398679921 is the 853581-st centered octagonal number.

It is an amenable number.

2914398679921 is a deficient number, since it is larger than the sum of its proper divisors (1707162).

2914398679921 is an frugal number, since it uses more digits than its factorization.

2914398679921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414322 (or 1707161 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 70.

The spelling of 2914398679921 in words is "two trillion, nine hundred fourteen billion, three hundred ninety-eight million, six hundred seventy-nine thousand, nine hundred twenty-one".