1874140786249 has 2 divisors, whose sum is σ = 1874140786250. Its totient is φ = 1874140786248.

The previous prime is 1874140786241. The next prime is 1874140786303. The reversal of 1874140786249 is 9426870414781.

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., 1290586881600 + 583553904649 = 1136040^2 + 763907^2 .

It is an emirp because it is prime and its reverse (9426870414781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1874140786249 - 2³ = 1874140786241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1874140786241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937070393124 + 937070393125.

It is an arithmetic number, because the mean of its divisors is an integer number (937070393125).

Almost surely, 2^{1874140786249} is an apocalyptic number.

It is an amenable number.

1874140786249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874140786249 is an equidigital number, since it uses as much as digits as its factorization.

1874140786249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 1874140786249 in words is "one trillion, eight hundred seventy-four billion, one hundred forty million, seven hundred eighty-six thousand, two hundred forty-nine".