4139537558640 has 160 divisors (see below), whose sum is σ = 14017663097856. Its totient is φ = 1002198113280.

The previous prime is 4139537558617. The next prime is 4139537558641. The reversal of 4139537558640 is 468557359314.

It is a happy number.

It is a super-2 number, since 2×4139537558640² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139537558641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962809 + ... + 3034151.

Almost surely, 2^{4139537558640} is an apocalyptic number.

4139537558640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4139537558640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7008831548928).

4139537558640 is an abundant number, since it is smaller than the sum of its proper divisors (9878125539216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4139537558640 is a wasteful number, since it uses less digits than its factorization.

4139537558640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072127 (or 2072121 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 4139537558640 in words is "four trillion, one hundred thirty-nine billion, five hundred thirty-seven million, five hundred fifty-eight thousand, six hundred forty".