75495642547 has 8 divisors (see below), whose sum is σ = 81321652944. Its totient is φ = 69672296928.

The previous prime is 75495642419. The next prime is 75495642553. The reversal of 75495642547 is 74524659457.

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

It is not a de Polignac number, because 75495642547 - 2⁷ = 75495642419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75495642491 and 75495642500.

It is not an unprimeable number, because it can be changed into a prime (75495642557) 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, 607153 + ... + 720850.

It is an arithmetic number, because the mean of its divisors is an integer number (10165206618).

Almost surely, 2^75495642547 is an apocalyptic number.

75495642547 is a deficient number, since it is larger than the sum of its proper divisors (5826010397).

75495642547 is a wasteful number, since it uses less digits than its factorization.

75495642547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332389.

The product of its digits is 42336000, while the sum is 58.

The spelling of 75495642547 in words is "seventy-five billion, four hundred ninety-five million, six hundred forty-two thousand, five hundred forty-seven".