8561375436 has 12 divisors (see below), whose sum is σ = 19976542712. Its totient is φ = 2853791808.

The previous prime is 8561375411. The next prime is 8561375453. The reversal of 8561375436 is 6345731658.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8561375436² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356723965 + ... + 356723988.

Almost surely, 2^8561375436 is an apocalyptic number.

It is an amenable number.

8561375436 is an abundant number, since it is smaller than the sum of its proper divisors (11415167276).

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

8561375436 is a wasteful number, since it uses less digits than its factorization.

8561375436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713447960 (or 713447958 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The square root of 8561375436 is about 92527.7009116729. The cubic root of 8561375436 is about 2045.7278021955.

The spelling of 8561375436 in words is "eight billion, five hundred sixty-one million, three hundred seventy-five thousand, four hundred thirty-six".