3942157543 has 16 divisors (see below), whose sum is σ = 4165862400. Its totient is φ = 3724680960.

The previous prime is 3942157529. The next prime is 3942157559. The reversal of 3942157543 is 3457512493.

It is a cyclic number.

It is not a de Polignac number, because 3942157543 - 2¹⁷ = 3942026471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3942157543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942157573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625498 + ... + 631768.

It is an arithmetic number, because the mean of its divisors is an integer number (260366400).

Almost surely, 2^3942157543 is an apocalyptic number.

3942157543 is a deficient number, since it is larger than the sum of its proper divisors (223704857).

3942157543 is a wasteful number, since it uses less digits than its factorization.

3942157543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6762.

The product of its digits is 453600, while the sum is 43.

The square root of 3942157543 is about 62786.6032127874. The cubic root of 3942157543 is about 1579.7122724206.

The spelling of 3942157543 in words is "three billion, nine hundred forty-two million, one hundred fifty-seven thousand, five hundred forty-three".