74434724569 has 2 divisors, whose sum is σ = 74434724570. Its totient is φ = 74434724568.

The previous prime is 74434724543. The next prime is 74434724591. The reversal of 74434724569 is 96542743447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59382379225 + 15052345344 = 243685^2 + 122688^2 .

It is a cyclic number.

It is not a de Polignac number, because 74434724569 - 2⁹ = 74434724057 is a prime.

It is a super-2 number, since 2×74434724569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74434722569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37217362284 + 37217362285.

It is an arithmetic number, because the mean of its divisors is an integer number (37217362285).

Almost surely, 2^74434724569 is an apocalyptic number.

It is an amenable number.

74434724569 is a deficient number, since it is larger than the sum of its proper divisors (1).

74434724569 is an equidigital number, since it uses as much as digits as its factorization.

74434724569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 55.

The spelling of 74434724569 in words is "seventy-four billion, four hundred thirty-four million, seven hundred twenty-four thousand, five hundred sixty-nine".