4393734742557 has 20 divisors (see below), whose sum is σ = 6572220039616. Its totient is φ = 2925256113000.

The previous prime is 4393734742549. The next prime is 4393734742589. The reversal of 4393734742557 is 7552474373934.

4393734742557 is a `hidden beast` number, since 4 + 3 + 9 + 3 + 7 + 3 + 4 + 74 + 2 + 557 = 666.

It is not a de Polignac number, because 4393734742557 - 2³ = 4393734742549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4393734742494 and 4393734742503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4393734742057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36053443 + ... + 36175104.

Almost surely, 2^{4393734742557} is an apocalyptic number.

It is an amenable number.

4393734742557 is a deficient number, since it is larger than the sum of its proper divisors (2178485297059).

4393734742557 is an equidigital number, since it uses as much as digits as its factorization.

4393734742557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72229310 (or 72229301 counting only the distinct ones).

The product of its digits is 266716800, while the sum is 63.

The spelling of 4393734742557 in words is "four trillion, three hundred ninety-three billion, seven hundred thirty-four million, seven hundred forty-two thousand, five hundred fifty-seven".