43137861036 has 24 divisors (see below), whose sum is σ = 101379149760. Its totient is φ = 14275838352.

The previous prime is 43137861017. The next prime is 43137861043. The reversal of 43137861036 is 63016873134.

It is a happy number.

It is a super-2 number, since 2×43137861036² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12929346 + ... + 12932681.

It is an arithmetic number, because the mean of its divisors is an integer number (4224131240).

Almost surely, 2^43137861036 is an apocalyptic number.

It is an amenable number.

43137861036 is an abundant number, since it is smaller than the sum of its proper divisors (58241288724).

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

43137861036 is a wasteful number, since it uses less digits than its factorization.

43137861036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25862173 (or 25862171 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 43137861036 in words is "forty-three billion, one hundred thirty-seven million, eight hundred sixty-one thousand, thirty-six".