1874685457 has 2 divisors, whose sum is σ = 1874685458. Its totient is φ = 1874685456.

The previous prime is 1874685433. The next prime is 1874685469. The reversal of 1874685457 is 7545864781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1518193296 + 356492161 = 38964^2 + 18881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1874685457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1874685398 and 1874685407.

It is not a weakly prime, because it can be changed into another prime (1874685487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937342728 + 937342729.

It is an arithmetic number, because the mean of its divisors is an integer number (937342729).

Almost surely, 2^1874685457 is an apocalyptic number.

It is an amenable number.

1874685457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874685457 is an equidigital number, since it uses as much as digits as its factorization.

1874685457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7526400, while the sum is 55.

The square root of 1874685457 is about 43297.6380071708. The cubic root of 1874685457 is about 1233.0370795540.

The spelling of 1874685457 in words is "one billion, eight hundred seventy-four million, six hundred eighty-five thousand, four hundred fifty-seven".