43387240763 has 2 divisors, whose sum is σ = 43387240764. Its totient is φ = 43387240762.

The previous prime is 43387240747. The next prime is 43387240781. The reversal of 43387240763 is 36704278334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43387240763 - 2⁴ = 43387240747 is a prime.

It is a super-2 number, since 2×43387240763² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43387248763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21693620381 + 21693620382.

It is an arithmetic number, because the mean of its divisors is an integer number (21693620382).

Almost surely, 2^43387240763 is an apocalyptic number.

43387240763 is a deficient number, since it is larger than the sum of its proper divisors (1).

43387240763 is an equidigital number, since it uses as much as digits as its factorization.

43387240763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 43387240763 in words is "forty-three billion, three hundred eighty-seven million, two hundred forty thousand, seven hundred sixty-three".