2979994625281 has 4 divisors (see below), whose sum is σ = 2980114816000. Its totient is φ = 2979874434564.

The previous prime is 2979994625273. The next prime is 2979994625317. The reversal of 2979994625281 is 1825264999792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2979994625281 - 2³ = 2979994625273 is a prime.

It is a super-2 number, since 2×2979994625281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979997625281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60058161 + ... + 60107758.

It is an arithmetic number, because the mean of its divisors is an integer number (745028704000).

Almost surely, 2^{2979994625281} is an apocalyptic number.

It is an amenable number.

2979994625281 is a deficient number, since it is larger than the sum of its proper divisors (120190719).

2979994625281 is a wasteful number, since it uses less digits than its factorization.

2979994625281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120190718.

The product of its digits is 352719360, while the sum is 73.

The spelling of 2979994625281 in words is "two trillion, nine hundred seventy-nine billion, nine hundred ninety-four million, six hundred twenty-five thousand, two hundred eighty-one".