74911640906 has 16 divisors (see below), whose sum is σ = 112542370920. Its totient is φ = 37397549760.

The previous prime is 74911640861. The next prime is 74911640929. The reversal of 74911640906 is 60904611947.

It can be written as a sum of positive squares in 4 ways, for example, as 48969706681 + 25941934225 = 221291^2 + 161065^2 .

It is a super-2 number, since 2×74911640906² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6544220 + ... + 6555656.

Almost surely, 2^74911640906 is an apocalyptic number.

74911640906 is a deficient number, since it is larger than the sum of its proper divisors (37630730014).

74911640906 is a wasteful number, since it uses less digits than its factorization.

74911640906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16249.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 74911640906 in words is "seventy-four billion, nine hundred eleven million, six hundred forty thousand, nine hundred six".