43137869061 has 16 divisors (see below), whose sum is σ = 67510488704. Its totient is φ = 23983988544.

The previous prime is 43137869023. The next prime is 43137869063. The reversal of 43137869061 is 16096873134.

It is a happy number.

It is not a de Polignac number, because 43137869061 - 2²¹ = 43135771909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43137869061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43137869063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27758470 + ... + 27760023.

It is an arithmetic number, because the mean of its divisors is an integer number (4219405544).

Almost surely, 2^43137869061 is an apocalyptic number.

It is an amenable number.

43137869061 is a deficient number, since it is larger than the sum of its proper divisors (24372619643).

43137869061 is a wasteful number, since it uses less digits than its factorization.

43137869061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55518540.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 43137869061 in words is "forty-three billion, one hundred thirty-seven million, eight hundred sixty-nine thousand, sixty-one".