2951084689921 has 4 divisors (see below), whose sum is σ = 2951098128832. Its totient is φ = 2951071251012.

The previous prime is 2951084689919. The next prime is 2951084689961. The reversal of 2951084689921 is 1299864801592.

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 2951084689921 - 2¹ = 2951084689919 is a prime.

It is a super-2 number, since 2×2951084689921² (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 (2951084689961) 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, 6384501 + ... + 6831106.

It is an arithmetic number, because the mean of its divisors is an integer number (737774532208).

Almost surely, 2^{2951084689921} is an apocalyptic number.

It is an amenable number.

2951084689921 is a deficient number, since it is larger than the sum of its proper divisors (13438911).

2951084689921 is a wasteful number, since it uses less digits than its factorization.

2951084689921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13438910.

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 2951084689921 in words is "two trillion, nine hundred fifty-one billion, eighty-four million, six hundred eighty-nine thousand, nine hundred twenty-one".