749391475841 has 2 divisors, whose sum is σ = 749391475842. Its totient is φ = 749391475840.

The previous prime is 749391475813. The next prime is 749391475853. The reversal of 749391475841 is 148574193947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492423589441 + 256967886400 = 701729^2 + 506920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749391475841 is a prime.

It is not a weakly prime, because it can be changed into another prime (749391475801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374695737920 + 374695737921.

It is an arithmetic number, because the mean of its divisors is an integer number (374695737921).

Almost surely, 2^749391475841 is an apocalyptic number.

It is an amenable number.

749391475841 is a deficient number, since it is larger than the sum of its proper divisors (1).

749391475841 is an equidigital number, since it uses as much as digits as its factorization.

749391475841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The spelling of 749391475841 in words is "seven hundred forty-nine billion, three hundred ninety-one million, four hundred seventy-five thousand, eight hundred forty-one".