43137782890 has 8 divisors (see below), whose sum is σ = 77648009220. Its totient is φ = 17255113152.

The previous prime is 43137782887. The next prime is 43137782899. The reversal of 43137782890 is 9828773134.

It can be written as a sum of positive squares in 2 ways, for example, as 38475214801 + 4662568089 = 196151^2 + 68283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (43137782899) 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, 2156889135 + ... + 2156889154.

Almost surely, 2^43137782890 is an apocalyptic number.

43137782890 is a deficient number, since it is larger than the sum of its proper divisors (34510226330).

43137782890 is a wasteful number, since it uses less digits than its factorization.

43137782890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313778296.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 43137782890 in words is "forty-three billion, one hundred thirty-seven million, seven hundred eighty-two thousand, eight hundred ninety".