75915481409 has 16 divisors (see below), whose sum is σ = 78741573120. Its totient is φ = 73103546880.

The previous prime is 75915481391. The next prime is 75915481417. The reversal of 75915481409 is 90418451957.

It is a cyclic number.

It is not a de Polignac number, because 75915481409 - 2⁸ = 75915481153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75915481489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35423792 + ... + 35425934.

It is an arithmetic number, because the mean of its divisors is an integer number (4921348320).

Almost surely, 2^75915481409 is an apocalyptic number.

It is an amenable number.

75915481409 is a deficient number, since it is larger than the sum of its proper divisors (2826091711).

75915481409 is a wasteful number, since it uses less digits than its factorization.

75915481409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840.

The product of its (nonzero) digits is 1814400, while the sum is 53.

It can be divided in two parts, 7591548 and 1409, that added together give a palindrome (7592957).

The spelling of 75915481409 in words is "seventy-five billion, nine hundred fifteen million, four hundred eighty-one thousand, four hundred nine".