75473169621 has 8 divisors (see below), whose sum is σ = 106550357184. Its totient is φ = 47355714240.

The previous prime is 75473169547. The next prime is 75473169677. The reversal of 75473169621 is 12696137457.

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

It is not a de Polignac number, because 75473169621 - 2¹¹ = 75473167573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1479866071 = 75473169621 / (7 + 5 + 4 + 7 + 3 + 1 + 6 + 9 + 6 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75473164621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739932985 + ... + 739933086.

It is an arithmetic number, because the mean of its divisors is an integer number (13318794648).

Almost surely, 2^75473169621 is an apocalyptic number.

It is an amenable number.

75473169621 is a deficient number, since it is larger than the sum of its proper divisors (31077187563).

75473169621 is a wasteful number, since it uses less digits than its factorization.

75473169621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479866091.

The product of its digits is 1905120, while the sum is 51.

The spelling of 75473169621 in words is "seventy-five billion, four hundred seventy-three million, one hundred sixty-nine thousand, six hundred twenty-one".