3945742257814 has 32 divisors (see below), whose sum is σ = 6856330899456. Its totient is φ = 1668123918720.

The previous prime is 3945742257803. The next prime is 3945742257953. The reversal of 3945742257814 is 4187522475493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5576502 + ... + 6244105.

It is an arithmetic number, because the mean of its divisors is an integer number (214260340608).

Almost surely, 2^{3945742257814} is an apocalyptic number.

3945742257814 is a deficient number, since it is larger than the sum of its proper divisors (2910588641642).

3945742257814 is a wasteful number, since it uses less digits than its factorization.

3945742257814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820940.

The product of its digits is 67737600, while the sum is 61.

The spelling of 3945742257814 in words is "three trillion, nine hundred forty-five billion, seven hundred forty-two million, two hundred fifty-seven thousand, eight hundred fourteen".