74561020105705 has 24 divisors (see below), whose sum is σ = 104081558023368. Its totient is φ = 51127330399488.

The previous prime is 74561020105699. The next prime is 74561020105799. The reversal of 74561020105705 is 50750102016547.

It can be written as a sum of positive squares in 4 ways, for example, as 8556233410816 + 66004786694889 = 2925104^2 + 8124333^2 .

It is not a de Polignac number, because 74561020105705 - 2⁵ = 74561020105673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69848247 + ... + 70907683.

It is an arithmetic number, because the mean of its divisors is an integer number (4336731584307).

Almost surely, 2^{74561020105705} is an apocalyptic number.

It is an amenable number.

74561020105705 is a deficient number, since it is larger than the sum of its proper divisors (29520537917663).

74561020105705 is a wasteful number, since it uses less digits than its factorization.

74561020105705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346713 (or 1346706 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 74561020105705 in words is "seventy-four trillion, five hundred sixty-one billion, twenty million, one hundred five thousand, seven hundred five".