75474754881 has 4 divisors (see below), whose sum is σ = 100633006512. Its totient is φ = 50316503252.

The previous prime is 75474754879. The next prime is 75474754913. The reversal of 75474754881 is 18845747457.

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 75474754881 - 2¹ = 75474754879 is a prime.

It is a super-2 number, since 2×75474754881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75474754681) 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, 12579125811 + ... + 12579125816.

It is an arithmetic number, because the mean of its divisors is an integer number (25158251628).

Almost surely, 2^75474754881 is an apocalyptic number.

It is an amenable number.

75474754881 is a deficient number, since it is larger than the sum of its proper divisors (25158251631).

75474754881 is a wasteful number, since it uses less digits than its factorization.

75474754881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25158251630.

The product of its digits is 35123200, while the sum is 60.

It can be divided in two parts, 754747 and 54881, that added together give a triangular number (809628 = T₁₂₇₂).

The spelling of 75474754881 in words is "seventy-five billion, four hundred seventy-four million, seven hundred fifty-four thousand, eight hundred eighty-one".