2651405247389 has 2 divisors, whose sum is σ = 2651405247390. Its totient is φ = 2651405247388.

The previous prime is 2651405247377. The next prime is 2651405247433. The reversal of 2651405247389 is 9837425041562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2650872422500 + 532824889 = 1628150^2 + 23083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651405247389 - 2²⁴ = 2651388470173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2651405247329) 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 as a sum of consecutive naturals, namely, 1325702623694 + 1325702623695.

It is an arithmetic number, because the mean of its divisors is an integer number (1325702623695).

It is a 1-persistent number, because it is pandigital, but 2⋅2651405247389 = 5302810494778 is not.

Almost surely, 2^{2651405247389} is an apocalyptic number.

It is an amenable number.

2651405247389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651405247389 is an equidigital number, since it uses as much as digits as its factorization.

2651405247389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 2651405247389 in words is "two trillion, six hundred fifty-one billion, four hundred five million, two hundred forty-seven thousand, three hundred eighty-nine".