8137885436 has 12 divisors (see below), whose sum is σ = 14283560928. Its totient is φ = 4056868032.

The previous prime is 8137885409. The next prime is 8137885439. The reversal of 8137885436 is 6345887318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137885439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3017156 + ... + 3019851.

It is an arithmetic number, because the mean of its divisors is an integer number (1190296744).

Almost surely, 2^8137885436 is an apocalyptic number.

It is an amenable number.

8137885436 is a deficient number, since it is larger than the sum of its proper divisors (6145675492).

8137885436 is a wasteful number, since it uses less digits than its factorization.

8137885436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037348 (or 6037346 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The square root of 8137885436 is about 90210.2291095638. The cubic root of 8137885436 is about 2011.4250626932.

The spelling of 8137885436 in words is "eight billion, one hundred thirty-seven million, eight hundred eighty-five thousand, four hundred thirty-six".