75494438061 has 8 divisors (see below), whose sum is σ = 115039143744. Its totient is φ = 43139678880.

The previous prime is 75494438039. The next prime is 75494438081. The reversal of 75494438061 is 16083449457.

It is a happy number.

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

It is not a de Polignac number, because 75494438061 - 2⁹ = 75494437549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75494437995 and 75494438013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75494438021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797486600 + ... + 1797486641.

It is an arithmetic number, because the mean of its divisors is an integer number (14379892968).

Almost surely, 2^75494438061 is an apocalyptic number.

It is an amenable number.

75494438061 is a deficient number, since it is larger than the sum of its proper divisors (39544705683).

75494438061 is a wasteful number, since it uses less digits than its factorization.

75494438061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594973251.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 75494438061 in words is "seventy-five billion, four hundred ninety-four million, four hundred thirty-eight thousand, sixty-one".