43132747640 has 16 divisors (see below), whose sum is σ = 97048682280. Its totient is φ = 17253099040.

The previous prime is 43132747547. The next prime is 43132747657. The reversal of 43132747640 is 4674723134.

It is a congruent number.

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, 539159306 + ... + 539159385.

Almost surely, 2^43132747640 is an apocalyptic number.

43132747640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43132747640 is an abundant number, since it is smaller than the sum of its proper divisors (53915934640).

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

43132747640 is a wasteful number, since it uses less digits than its factorization.

43132747640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078318702 (or 1078318698 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 43132747640 in words is "forty-three billion, one hundred thirty-two million, seven hundred forty-seven thousand, six hundred forty".