8156312042473 has 8 divisors (see below), whose sum is σ = 9327478642560. Its totient is φ = 6986640233760.

The previous prime is 8156312042467. The next prime is 8156312042497. The reversal of 8156312042473 is 3742402136518.

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

It is a cyclic number.

It is not a de Polignac number, because 8156312042473 - 2⁵ = 8156312042441 is a prime.

It is a super-2 number, since 2×8156312042473² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8156312042773) 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, 373686148 + ... + 373707973.

It is an arithmetic number, because the mean of its divisors is an integer number (1165934830320).

Almost surely, 2^{8156312042473} is an apocalyptic number.

It is an amenable number.

8156312042473 is a deficient number, since it is larger than the sum of its proper divisors (1171166600087).

8156312042473 is a wasteful number, since it uses less digits than its factorization.

8156312042473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747395687.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 8156312042473 in words is "eight trillion, one hundred fifty-six billion, three hundred twelve million, forty-two thousand, four hundred seventy-three".