780513583097 has 2 divisors, whose sum is σ = 780513583098. Its totient is φ = 780513583096.

The previous prime is 780513583049. The next prime is 780513583139. The reversal of 780513583097 is 790385315087.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593707234576 + 186806348521 = 770524^2 + 432211^2 .

It is a cyclic number.

It is not a de Polignac number, because 780513583097 - 2⁶ = 780513583033 is a prime.

It is a super-2 number, since 2×780513583097² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (780513583897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390256791548 + 390256791549.

It is an arithmetic number, because the mean of its divisors is an integer number (390256791549).

Almost surely, 2^780513583097 is an apocalyptic number.

It is an amenable number.

780513583097 is a deficient number, since it is larger than the sum of its proper divisors (1).

780513583097 is an equidigital number, since it uses as much as digits as its factorization.

780513583097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 780513583097 in words is "seven hundred eighty billion, five hundred thirteen million, five hundred eighty-three thousand, ninety-seven".