2921939397914 has 16 divisors (see below), whose sum is σ = 4437658799208. Its totient is φ = 1442813148672.

The previous prime is 2921939397913. The next prime is 2921939397931. The reversal of 2921939397914 is 4197939391292.

It can be written as a sum of positive squares in 4 ways, for example, as 358402176889 + 2563537221025 = 598667^2 + 1601105^2 .

It is not an unprimeable number, because it can be changed into a prime (2921939397913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23274827 + ... + 23400030.

Almost surely, 2^{2921939397914} is an apocalyptic number.

2921939397914 is a deficient number, since it is larger than the sum of its proper divisors (1515719401294).

2921939397914 is a wasteful number, since it uses less digits than its factorization.

2921939397914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46675249.

The product of its digits is 59521392, while the sum is 68.

The spelling of 2921939397914 in words is "two trillion, nine hundred twenty-one billion, nine hundred thirty-nine million, three hundred ninety-seven thousand, nine hundred fourteen".