7312919255009 has 2 divisors, whose sum is σ = 7312919255010. Its totient is φ = 7312919255008.

The previous prime is 7312919254967. The next prime is 7312919255021. The reversal of 7312919255009 is 9005529192137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6926750224384 + 386169030625 = 2631872^2 + 621425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7312919255009 is a prime.

It is not a weakly prime, because it can be changed into another prime (7312919255099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3656459627504 + 3656459627505.

It is an arithmetic number, because the mean of its divisors is an integer number (3656459627505).

Almost surely, 2^{7312919255009} is an apocalyptic number.

It is an amenable number.

7312919255009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7312919255009 is an equidigital number, since it uses as much as digits as its factorization.

7312919255009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 7312919255009 in words is "seven trillion, three hundred twelve billion, nine hundred nineteen million, two hundred fifty-five thousand, nine".