805118531497 has 8 divisors (see below), whose sum is σ = 941533964096. Its totient is φ = 674052723792.

The previous prime is 805118531479. The next prime is 805118531533. The reversal of 805118531497 is 794135811508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 805118531497 - 2⁷ = 805118531369 is a prime.

It is a super-2 number, since 2×805118531497² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805118531597) 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, 1337405898 + ... + 1337406499.

It is an arithmetic number, because the mean of its divisors is an integer number (117691745512).

Almost surely, 2^805118531497 is an apocalyptic number.

It is an amenable number.

805118531497 is a deficient number, since it is larger than the sum of its proper divisors (136415432599).

805118531497 is a wasteful number, since it uses less digits than its factorization.

805118531497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674812447.

The product of its (nonzero) digits is 1209600, while the sum is 52.

The spelling of 805118531497 in words is "eight hundred five billion, one hundred eighteen million, five hundred thirty-one thousand, four hundred ninety-seven".