43061407640 has 32 divisors (see below), whose sum is σ = 97290214560. Its totient is φ = 17153088000.

The previous prime is 43061407639. The next prime is 43061407651. The reversal of 43061407640 is 4670416034.

It is a self number, because there is not a number n which added to its sum of digits gives 43061407640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223836 + ... + 2243115.

It is an arithmetic number, because the mean of its divisors is an integer number (3040319205).

Almost surely, 2^43061407640 is an apocalyptic number.

43061407640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43061407640 is an abundant number, since it is smaller than the sum of its proper divisors (54228806920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43061407640 is a wasteful number, since it uses less digits than its factorization.

43061407640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467203 (or 4467199 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 43061407640 in words is "forty-three billion, sixty-one million, four hundred seven thousand, six hundred forty".