4434732640557 has 12 divisors (see below), whose sum is σ = 6410641077984. Its totient is φ = 2954219433480.

The previous prime is 4434732640543. The next prime is 4434732640607. The reversal of 4434732640557 is 7550462374344.

4434732640557 is a `hidden beast` number, since 4 + 4 + 3 + 47 + 3 + 2 + 6 + 40 + 557 = 666.

It is not a de Polignac number, because 4434732640557 - 2⁸ = 4434732640301 is a prime.

It is a super-2 number, since 2×4434732640557² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4434732640057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189070419 + ... + 189093872.

It is an arithmetic number, because the mean of its divisors is an integer number (534220089832).

Almost surely, 2^{4434732640557} is an apocalyptic number.

It is an amenable number.

4434732640557 is a deficient number, since it is larger than the sum of its proper divisors (1975908437427).

4434732640557 is a wasteful number, since it uses less digits than its factorization.

4434732640557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378165600 (or 378165597 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 54.

The spelling of 4434732640557 in words is "four trillion, four hundred thirty-four billion, seven hundred thirty-two million, six hundred forty thousand, five hundred fifty-seven".