74075495681 has 16 divisors (see below), whose sum is σ = 85225539840. Its totient is φ = 63675000720.

The previous prime is 74075495677. The next prime is 74075495707. The reversal of 74075495681 is 18659457047.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74075495681 - 2² = 74075495677 is a prime.

It is a super-2 number, since 2×74075495681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74075491681) 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, 229535 + ... + 448148.

It is an arithmetic number, because the mean of its divisors is an integer number (5326596240).

Almost surely, 2^74075495681 is an apocalyptic number.

It is an amenable number.

74075495681 is a deficient number, since it is larger than the sum of its proper divisors (11150044159).

74075495681 is a wasteful number, since it uses less digits than its factorization.

74075495681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678236.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 74075495681 in words is "seventy-four billion, seventy-five million, four hundred ninety-five thousand, six hundred eighty-one".