742878543 has 16 divisors (see below), whose sum is σ = 1081011456. Its totient is φ = 450037440.

The previous prime is 742878523. The next prime is 742878551. The reversal of 742878543 is 345878247.

It is not a de Polignac number, because 742878543 - 2¹⁰ = 742877519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742878492 and 742878501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742878503) 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 15 ways as a sum of consecutive naturals, for example, 131646 + ... + 137172.

It is an arithmetic number, because the mean of its divisors is an integer number (67563216).

Almost surely, 2^742878543 is an apocalyptic number.

742878543 is a deficient number, since it is larger than the sum of its proper divisors (338132913).

742878543 is a wasteful number, since it uses less digits than its factorization.

742878543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9614.

The product of its digits is 1505280, while the sum is 48.

The square root of 742878543 is about 27255.7983372346. The cubic root of 742878543 is about 905.6754693890.

The spelling of 742878543 in words is "seven hundred forty-two million, eight hundred seventy-eight thousand, five hundred forty-three".