75421472937 has 4 divisors (see below), whose sum is σ = 100561963920. Its totient is φ = 50280981956.

The previous prime is 75421472899. The next prime is 75421472939. The reversal of 75421472937 is 73927412457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75421472937 - 2²⁴ = 75404695721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75421472937.

It is not an unprimeable number, because it can be changed into a prime (75421472939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12570245487 + ... + 12570245492.

It is an arithmetic number, because the mean of its divisors is an integer number (25140490980).

Almost surely, 2^75421472937 is an apocalyptic number.

It is an amenable number.

75421472937 is a deficient number, since it is larger than the sum of its proper divisors (25140490983).

75421472937 is a wasteful number, since it uses less digits than its factorization.

75421472937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25140490982.

The product of its digits is 2963520, while the sum is 51.

The spelling of 75421472937 in words is "seventy-five billion, four hundred twenty-one million, four hundred seventy-two thousand, nine hundred thirty-seven".