749799997997 has 2 divisors, whose sum is σ = 749799997998. Its totient is φ = 749799997996.

The previous prime is 749799997897. The next prime is 749799998011. The reversal of 749799997997 is 799799997947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 745440565321 + 4359432676 = 863389^2 + 66026^2 .

It is a cyclic number.

It is not a de Polignac number, because 749799997997 - 2¹⁰ = 749799996973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749799997097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374899998998 + 374899998999.

It is an arithmetic number, because the mean of its divisors is an integer number (374899998999).

Almost surely, 2^749799997997 is an apocalyptic number.

It is an amenable number.

749799997997 is a deficient number, since it is larger than the sum of its proper divisors (1).

749799997997 is an equidigital number, since it uses as much as digits as its factorization.

749799997997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45935634276, while the sum is 95.

The spelling of 749799997997 in words is "seven hundred forty-nine billion, seven hundred ninety-nine million, nine hundred ninety-seven thousand, nine hundred ninety-seven".