74351265835949 has 4 divisors (see below), whose sum is σ = 74351435535036. Its totient is φ = 74351096136864.

The previous prime is 74351265835933. The next prime is 74351265835961. The reversal of 74351265835949 is 94953856215347.

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 24853146295849 + 49498119540100 = 4985293^2 + 7035490^2 .

It is a cyclic number.

It is not a de Polignac number, because 74351265835949 - 2⁴ = 74351265835933 is a prime.

It is a super-2 number, since 2×74351265835949² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74351265835909) 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, 84190634 + ... + 85069179.

It is an arithmetic number, because the mean of its divisors is an integer number (18587858883759).

Almost surely, 2^{74351265835949} is an apocalyptic number.

It is an amenable number.

74351265835949 is a deficient number, since it is larger than the sum of its proper divisors (169699087).

74351265835949 is a wasteful number, since it uses less digits than its factorization.

74351265835949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169699086.

The product of its digits is 979776000, while the sum is 71.

The spelling of 74351265835949 in words is "seventy-four trillion, three hundred fifty-one billion, two hundred sixty-five million, eight hundred thirty-five thousand, nine hundred forty-nine".