74791668534357 has 4 divisors (see below), whose sum is σ = 99722224712480. Its totient is φ = 49861112356236.

The previous prime is 74791668534353. The next prime is 74791668534371. The reversal of 74791668534357 is 75343586619747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74791668534357 - 2² = 74791668534353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74791668534353) 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, 12465278089057 + ... + 12465278089062.

It is an arithmetic number, because the mean of its divisors is an integer number (24930556178120).

Almost surely, 2^{74791668534357} is an apocalyptic number.

It is an amenable number.

74791668534357 is a deficient number, since it is larger than the sum of its proper divisors (24930556178123).

74791668534357 is a wasteful number, since it uses less digits than its factorization.

74791668534357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24930556178122.

The product of its digits is 3200601600, while the sum is 75.

The spelling of 74791668534357 in words is "seventy-four trillion, seven hundred ninety-one billion, six hundred sixty-eight million, five hundred thirty-four thousand, three hundred fifty-seven".