74531278771 has 2 divisors, whose sum is σ = 74531278772. Its totient is φ = 74531278770.

The previous prime is 74531278727. The next prime is 74531278837. The reversal of 74531278771 is 17787213547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74531278771 - 2⁷ = 74531278643 is a prime.

It is not a weakly prime, because it can be changed into another prime (74531278721) 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 as a sum of consecutive naturals, namely, 37265639385 + 37265639386.

It is an arithmetic number, because the mean of its divisors is an integer number (37265639386).

Almost surely, 2^74531278771 is an apocalyptic number.

74531278771 is a deficient number, since it is larger than the sum of its proper divisors (1).

74531278771 is an equidigital number, since it uses as much as digits as its factorization.

74531278771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304960, while the sum is 52.

The spelling of 74531278771 in words is "seventy-four billion, five hundred thirty-one million, two hundred seventy-eight thousand, seven hundred seventy-one".