8512350640 has 40 divisors (see below), whose sum is σ = 19972806480. Its totient is φ = 3373698816.

The previous prime is 8512350631. The next prime is 8512350689. The reversal of 8512350640 is 460532158.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×8512350640² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8512350596 and 8512350605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479374 + ... + 496813.

It is an arithmetic number, because the mean of its divisors is an integer number (499320162).

Almost surely, 2^8512350640 is an apocalyptic number.

8512350640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8512350640 is an abundant number, since it is smaller than the sum of its proper divisors (11460455840).

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

8512350640 is a wasteful number, since it uses less digits than its factorization.

8512350640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976309 (or 976303 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 8512350640 is about 92262.4010092952. The cubic root of 8512350640 is about 2041.8155246141.

Adding to 8512350640 its reverse (460532158), we get a palindrome (8972882798).

The spelling of 8512350640 in words is "eight billion, five hundred twelve million, three hundred fifty thousand, six hundred forty".