8561923037740 has 24 divisors (see below), whose sum is σ = 18761779179360. Its totient is φ = 3275866205568.

The previous prime is 8561923037699. The next prime is 8561923037747. The reversal of 8561923037740 is 477303291658.

It is a super-2 number, since 2×8561923037740² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8561923037747) 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, 9306437625 + ... + 9306438544.

It is an arithmetic number, because the mean of its divisors is an integer number (781740799140).

It is a 1-persistent number, because it is pandigital, but 2⋅8561923037740 = 17123846075480 is not.

Almost surely, 2^{8561923037740} is an apocalyptic number.

It is an amenable number.

8561923037740 is an abundant number, since it is smaller than the sum of its proper divisors (10199856141620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8561923037740 is a wasteful number, since it uses less digits than its factorization.

8561923037740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18612876201 (or 18612876199 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 8561923037740 in words is "eight trillion, five hundred sixty-one billion, nine hundred twenty-three million, thirty-seven thousand, seven hundred forty".