4255621747039 has 4 divisors (see below), whose sum is σ = 4582977266056. Its totient is φ = 3928266228024.

The previous prime is 4255621747019. The next prime is 4255621747057. The reversal of 4255621747039 is 9307471265524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4255621747039 - 2⁹ = 4255621746527 is a prime.

It is a super-2 number, since 2×4255621747039² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255621747019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163677759489 + ... + 163677759514.

It is an arithmetic number, because the mean of its divisors is an integer number (1145744316514).

Almost surely, 2^{4255621747039} is an apocalyptic number.

4255621747039 is a deficient number, since it is larger than the sum of its proper divisors (327355519017).

4255621747039 is a wasteful number, since it uses less digits than its factorization.

4255621747039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327355519016.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 4255621747039 in words is "four trillion, two hundred fifty-five billion, six hundred twenty-one million, seven hundred forty-seven thousand, thirty-nine".