975027777497 has 2 divisors, whose sum is σ = 975027777498. Its totient is φ = 975027777496.

The previous prime is 975027777491. The next prime is 975027777551. The reversal of 975027777497 is 794777720579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 954394178761 + 20633598736 = 976931^2 + 143644^2 .

It is an emirp because it is prime and its reverse (794777720579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975027777497 - 2⁶ = 975027777433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 975027777497.

It is not a weakly prime, because it can be changed into another prime (975027777491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487513888748 + 487513888749.

It is an arithmetic number, because the mean of its divisors is an integer number (487513888749).

Almost surely, 2^975027777497 is an apocalyptic number.

It is an amenable number.

975027777497 is a deficient number, since it is larger than the sum of its proper divisors (1).

975027777497 is an equidigital number, since it uses as much as digits as its factorization.

975027777497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381182760, while the sum is 71.

The spelling of 975027777497 in words is "nine hundred seventy-five billion, twenty-seven million, seven hundred seventy-seven thousand, four hundred ninety-seven".