74671103740081 has 4 divisors (see below), whose sum is σ = 75146715865972. Its totient is φ = 74195491614192.

The previous prime is 74671103740049. The next prime is 74671103740099. The reversal of 74671103740081 is 18004730117647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8039946830400 + 66631156909681 = 2835480^2 + 8162791^2 .

It is a cyclic number.

It is not a de Polignac number, because 74671103740081 - 2⁵ = 74671103740049 is a prime.

It is a super-2 number, since 2×74671103740081² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74671103741081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237806062710 + ... + 237806063023.

It is an arithmetic number, because the mean of its divisors is an integer number (18786678966493).

Almost surely, 2^{74671103740081} is an apocalyptic number.

It is an amenable number.

74671103740081 is a deficient number, since it is larger than the sum of its proper divisors (475612125891).

74671103740081 is a wasteful number, since it uses less digits than its factorization.

74671103740081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475612125890.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 74671103740081 in words is "seventy-four trillion, six hundred seventy-one billion, one hundred three million, seven hundred forty thousand, eighty-one".