1249835949697 has 4 divisors (see below), whose sum is σ = 1249884829440. Its totient is φ = 1249787069956.

The previous prime is 1249835949679. The next prime is 1249835949737. The reversal of 1249835949697 is 7969495389421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1249835949697 - 2¹⁵ = 1249835916929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249835949647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24401497 + ... + 24452662.

It is an arithmetic number, because the mean of its divisors is an integer number (312471207360).

Almost surely, 2^{1249835949697} is an apocalyptic number.

It is an amenable number.

1249835949697 is a deficient number, since it is larger than the sum of its proper divisors (48879743).

1249835949697 is an equidigital number, since it uses as much as digits as its factorization.

1249835949697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48879742.

The product of its digits is 1058158080, while the sum is 76.

The spelling of 1249835949697 in words is "one trillion, two hundred forty-nine billion, eight hundred thirty-five million, nine hundred forty-nine thousand, six hundred ninety-seven".