74742402943 has 8 divisors (see below), whose sum is σ = 80545969728. Its totient is φ = 68946572064.

The previous prime is 74742402941. The next prime is 74742402953. The reversal of 74742402943 is 34920424747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74742402943 - 2¹ = 74742402941 is a prime.

It is a super-2 number, since 2×74742402943² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74742402893 and 74742402902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74742402941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913896 + ... + 1952557.

It is an arithmetic number, because the mean of its divisors is an integer number (10068246216).

Almost surely, 2^74742402943 is an apocalyptic number.

74742402943 is a deficient number, since it is larger than the sum of its proper divisors (5803566785).

74742402943 is a wasteful number, since it uses less digits than its factorization.

74742402943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867953.

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 74742402943 in words is "seventy-four billion, seven hundred forty-two million, four hundred two thousand, nine hundred forty-three".