43091261950 has 24 divisors (see below), whose sum is σ = 87436089000. Its totient is φ = 15669549600.

The previous prime is 43091261911. The next prime is 43091261971. The reversal of 43091261950 is 5916219034.

43091261950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39173325 + ... + 39174424.

It is an arithmetic number, because the mean of its divisors is an integer number (3643170375).

Almost surely, 2^43091261950 is an apocalyptic number.

43091261950 is an abundant number, since it is smaller than the sum of its proper divisors (44344827050).

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

43091261950 is a wasteful number, since it uses less digits than its factorization.

43091261950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78347772 (or 78347767 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 43091261950 in words is "forty-three billion, ninety-one million, two hundred sixty-one thousand, nine hundred fifty".