75440020422639 has 8 divisors (see below), whose sum is σ = 100586759172480. Its totient is φ = 50293314310616.

The previous prime is 75440020422631. The next prime is 75440020422647. The reversal of 75440020422639 is 93622402004457.

It is an interprime number because it is at equal distance from previous prime (75440020422631) and next prime (75440020422647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75440020422639 - 2³ = 75440020422631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75440020422631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129517 + ... + 12466550.

It is an arithmetic number, because the mean of its divisors is an integer number (12573344896560).

Almost surely, 2^{75440020422639} is an apocalyptic number.

75440020422639 is a deficient number, since it is larger than the sum of its proper divisors (25146738749841).

75440020422639 is a wasteful number, since it uses less digits than its factorization.

75440020422639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16318909.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 75440020422639 in words is "seventy-five trillion, four hundred forty billion, twenty million, four hundred twenty-two thousand, six hundred thirty-nine".