8291117745970 has 64 divisors (see below), whose sum is σ = 15507941184000. Its totient is φ = 3187720028416.

The previous prime is 8291117745961. The next prime is 8291117745983. The reversal of 8291117745970 is 795477111928.

It is a junction number, because it is equal to n+sod(n) for n = 8291117745899 and 8291117745908.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253588944 + ... + 253621636.

It is an arithmetic number, because the mean of its divisors is an integer number (242311581000).

Almost surely, 2^{8291117745970} is an apocalyptic number.

8291117745970 is a deficient number, since it is larger than the sum of its proper divisors (7216823438030).

8291117745970 is a wasteful number, since it uses less digits than its factorization.

8291117745970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36627.

The product of its (nonzero) digits is 8890560, while the sum is 61.

The spelling of 8291117745970 in words is "eight trillion, two hundred ninety-one billion, one hundred seventeen million, seven hundred forty-five thousand, nine hundred seventy".