743950691869 has 12 divisors (see below), whose sum is σ = 944085850848. Its totient is φ = 579701837400.

The previous prime is 743950691837. The next prime is 743950691873. The reversal of 743950691869 is 968196059347.

It is not a de Polignac number, because 743950691869 - 2⁵ = 743950691837 is a prime.

It is a super-2 number, since 2×743950691869² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743950692869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690120697 + ... + 690121774.

It is an arithmetic number, because the mean of its divisors is an integer number (78673820904).

Almost surely, 2^743950691869 is an apocalyptic number.

It is an amenable number.

743950691869 is a deficient number, since it is larger than the sum of its proper divisors (200135158979).

743950691869 is a wasteful number, since it uses less digits than its factorization.

743950691869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380242496 (or 1380242489 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 743950691869 in words is "seven hundred forty-three billion, nine hundred fifty million, six hundred ninety-one thousand, eight hundred sixty-nine".