1248791667834 has 16 divisors (see below), whose sum is σ = 2644500002688. Its totient is φ = 391777778112.

The previous prime is 1248791667833. The next prime is 1248791667853. The reversal of 1248791667834 is 4387661978421.

It is not an unprimeable number, because it can be changed into a prime (1248791667833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6121527682 + ... + 6121527885.

It is an arithmetic number, because the mean of its divisors is an integer number (165281250168).

Almost surely, 2^{1248791667834} is an apocalyptic number.

1248791667834 is an abundant number, since it is smaller than the sum of its proper divisors (1395708334854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248791667834 is a wasteful number, since it uses less digits than its factorization.

1248791667834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12243055589.

The product of its digits is 97542144, while the sum is 66.

The spelling of 1248791667834 in words is "one trillion, two hundred forty-eight billion, seven hundred ninety-one million, six hundred sixty-seven thousand, eight hundred thirty-four".