43397806988 has 12 divisors (see below), whose sum is σ = 75957074592. Its totient is φ = 21695785680.

The previous prime is 43397806951. The next prime is 43397807027. The reversal of 43397806988 is 88960879334.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747995 + ... + 803922.

It is an arithmetic number, because the mean of its divisors is an integer number (6329756216).

Almost surely, 2^43397806988 is an apocalyptic number.

It is an amenable number.

43397806988 is a deficient number, since it is larger than the sum of its proper divisors (32559267604).

43397806988 is a wasteful number, since it uses less digits than its factorization.

43397806988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558912 (or 1558910 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 43397806988 in words is "forty-three billion, three hundred ninety-seven million, eight hundred six thousand, nine hundred eighty-eight".