2651422019969 has 2 divisors, whose sum is σ = 2651422019970. Its totient is φ = 2651422019968.

The previous prime is 2651422019891. The next prime is 2651422019971. The reversal of 2651422019969 is 9699102241562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2436393201025 + 215028818944 = 1560895^2 + 463712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2651422019969 is a prime.

It is a super-2 number, since 2×2651422019969² (a number of 26 digits) contains 22 as substring.

Together with 2651422019971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2651422019369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325711009984 + 1325711009985.

It is an arithmetic number, because the mean of its divisors is an integer number (1325711009985).

Almost surely, 2^{2651422019969} is an apocalyptic number.

It is an amenable number.

2651422019969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651422019969 is an equidigital number, since it uses as much as digits as its factorization.

2651422019969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 56.

The spelling of 2651422019969 in words is "two trillion, six hundred fifty-one billion, four hundred twenty-two million, nineteen thousand, nine hundred sixty-nine".