75931421449 has 16 divisors (see below), whose sum is σ = 84776033664. Its totient is φ = 67557110400.

The previous prime is 75931421443. The next prime is 75931421479. The reversal of 75931421449 is 94412413957.

It is not a de Polignac number, because 75931421449 - 2¹¹ = 75931419401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75931421443) 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 15 ways as a sum of consecutive naturals, for example, 813957 + ... + 902434.

It is an arithmetic number, because the mean of its divisors is an integer number (5298502104).

Almost surely, 2^75931421449 is an apocalyptic number.

It is an amenable number.

75931421449 is a deficient number, since it is larger than the sum of its proper divisors (8844612215).

75931421449 is a wasteful number, since it uses less digits than its factorization.

75931421449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716528.

The product of its digits is 1088640, while the sum is 49.

The spelling of 75931421449 in words is "seventy-five billion, nine hundred thirty-one million, four hundred twenty-one thousand, four hundred forty-nine".