748554649481 has 2 divisors, whose sum is σ = 748554649482. Its totient is φ = 748554649480.

The previous prime is 748554649471. The next prime is 748554649501. The reversal of 748554649481 is 184946455847.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632794794256 + 115759855225 = 795484^2 + 340235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748554649481 is a prime.

It is a super-2 number, since 2×748554649481² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (748554649441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374277324740 + 374277324741.

It is an arithmetic number, because the mean of its divisors is an integer number (374277324741).

Almost surely, 2^748554649481 is an apocalyptic number.

It is an amenable number.

748554649481 is a deficient number, since it is larger than the sum of its proper divisors (1).

748554649481 is an equidigital number, since it uses as much as digits as its factorization.

748554649481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154828800, while the sum is 65.

The spelling of 748554649481 in words is "seven hundred forty-eight billion, five hundred fifty-four million, six hundred forty-nine thousand, four hundred eighty-one".