43691361672 has 64 divisors (see below), whose sum is σ = 124906752000. Its totient is φ = 12475817280.

The previous prime is 43691361667. The next prime is 43691361709. The reversal of 43691361672 is 27616319634.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208897 + ... + 361967.

It is an arithmetic number, because the mean of its divisors is an integer number (1951668000).

Almost surely, 2^43691361672 is an apocalyptic number.

43691361672 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43691361672 is an abundant number, since it is smaller than the sum of its proper divisors (81215390328).

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

43691361672 is a wasteful number, since it uses less digits than its factorization.

43691361672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154786 (or 154782 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The spelling of 43691361672 in words is "forty-three billion, six hundred ninety-one million, three hundred sixty-one thousand, six hundred seventy-two".