8512261940 has 96 divisors (see below), whose sum is σ = 22512779520. Its totient is φ = 2631315456.

The previous prime is 8512261939. The next prime is 8512261943. The reversal of 8512261940 is 491622158.

It is a junction number, because it is equal to n+sod(n) for n = 8512261894 and 8512261903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8512261943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23876 + ... + 132644.

It is an arithmetic number, because the mean of its divisors is an integer number (234508120).

Almost surely, 2^8512261940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8512261940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11256389760).

8512261940 is an abundant number, since it is smaller than the sum of its proper divisors (14000517580).

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

8512261940 is a wasteful number, since it uses less digits than its factorization.

8512261940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108841 (or 108839 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 8512261940 is about 92261.9203138543. The cubic root of 8512261940 is about 2041.8084325791.

The spelling of 8512261940 in words is "eight billion, five hundred twelve million, two hundred sixty-one thousand, nine hundred forty".