43046551987 has 2 divisors, whose sum is σ = 43046551988. Its totient is φ = 43046551986.

The previous prime is 43046551979. The next prime is 43046552009. The reversal of 43046551987 is 78915564034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43046551987 - 2³ = 43046551979 is a prime.

It is not a weakly prime, because it can be changed into another prime (43046551687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21523275993 + 21523275994.

It is an arithmetic number, because the mean of its divisors is an integer number (21523275994).

Almost surely, 2^43046551987 is an apocalyptic number.

43046551987 is a deficient number, since it is larger than the sum of its proper divisors (1).

43046551987 is an equidigital number, since it uses as much as digits as its factorization.

43046551987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 43046551987 in words is "forty-three billion, forty-six million, five hundred fifty-one thousand, nine hundred eighty-seven".