742252254421 has 2 divisors, whose sum is σ = 742252254422. Its totient is φ = 742252254420.

The previous prime is 742252254349. The next prime is 742252254439. The reversal of 742252254421 is 124452252247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732718880100 + 9533374321 = 855990^2 + 97639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742252254421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742252254461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371126127210 + 371126127211.

It is an arithmetic number, because the mean of its divisors is an integer number (371126127211).

Almost surely, 2^742252254421 is an apocalyptic number.

It is an amenable number.

742252254421 is a deficient number, since it is larger than the sum of its proper divisors (1).

742252254421 is an equidigital number, since it uses as much as digits as its factorization.

742252254421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 358400, while the sum is 40.

The spelling of 742252254421 in words is "seven hundred forty-two billion, two hundred fifty-two million, two hundred fifty-four thousand, four hundred twenty-one".