783267480557 has 2 divisors, whose sum is σ = 783267480558. Its totient is φ = 783267480556.

The previous prime is 783267480539. The next prime is 783267480587. The reversal of 783267480557 is 755084762387.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461612895241 + 321654585316 = 679421^2 + 567146^2 .

It is an emirp because it is prime and its reverse (755084762387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 783267480557 - 2⁶ = 783267480493 is a prime.

It is a super-2 number, since 2×783267480557² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 783267480557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (783267480587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391633740278 + 391633740279.

It is an arithmetic number, because the mean of its divisors is an integer number (391633740279).

Almost surely, 2^783267480557 is an apocalyptic number.

It is an amenable number.

783267480557 is a deficient number, since it is larger than the sum of its proper divisors (1).

783267480557 is an equidigital number, since it uses as much as digits as its factorization.

783267480557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79027200, while the sum is 62.

The spelling of 783267480557 in words is "seven hundred eighty-three billion, two hundred sixty-seven million, four hundred eighty thousand, five hundred fifty-seven".