74304180981 has 8 divisors (see below), whose sum is σ = 110080268160. Its totient is φ = 49536120636.

The previous prime is 74304180961. The next prime is 74304180983. The reversal of 74304180981 is 18908140347.

It is a happy number.

It is not a de Polignac number, because 74304180981 - 2⁶ = 74304180917 is a prime.

It is a super-2 number, since 2×74304180981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74304180983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376003325 + ... + 1376003378.

It is an arithmetic number, because the mean of its divisors is an integer number (13760033520).

Almost surely, 2^74304180981 is an apocalyptic number.

It is an amenable number.

74304180981 is a deficient number, since it is larger than the sum of its proper divisors (35776087179).

74304180981 is a wasteful number, since it uses less digits than its factorization.

74304180981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752006712 (or 2752006706 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 74304180981 in words is "seventy-four billion, three hundred four million, one hundred eighty thousand, nine hundred eighty-one".