748421274949 has 2 divisors, whose sum is σ = 748421274950. Its totient is φ = 748421274948.

The previous prime is 748421274919. The next prime is 748421274967. The reversal of 748421274949 is 949472124847.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668780484100 + 79640790849 = 817790^2 + 282207^2 .

It is an emirp because it is prime and its reverse (949472124847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 748421274949 - 2¹⁹ = 748420750661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748421274919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374210637474 + 374210637475.

It is an arithmetic number, because the mean of its divisors is an integer number (374210637475).

Almost surely, 2^748421274949 is an apocalyptic number.

It is an amenable number.

748421274949 is a deficient number, since it is larger than the sum of its proper divisors (1).

748421274949 is an equidigital number, since it uses as much as digits as its factorization.

748421274949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 61.

The spelling of 748421274949 in words is "seven hundred forty-eight billion, four hundred twenty-one million, two hundred seventy-four thousand, nine hundred forty-nine".