74962047257 has 2 divisors, whose sum is σ = 74962047258. Its totient is φ = 74962047256.

The previous prime is 74962047227. The next prime is 74962047283. The reversal of 74962047257 is 75274026947.

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., 72833055376 + 2128991881 = 269876^2 + 46141^2 .

It is a cyclic number.

It is not a de Polignac number, because 74962047257 - 2⁸ = 74962047001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74962047199 and 74962047208.

It is not a weakly prime, because it can be changed into another prime (74962047227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37481023628 + 37481023629.

It is an arithmetic number, because the mean of its divisors is an integer number (37481023629).

Almost surely, 2^74962047257 is an apocalyptic number.

It is an amenable number.

74962047257 is a deficient number, since it is larger than the sum of its proper divisors (1).

74962047257 is an equidigital number, since it uses as much as digits as its factorization.

74962047257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 74962047257 in words is "seventy-four billion, nine hundred sixty-two million, forty-seven thousand, two hundred fifty-seven".