43401513212 has 12 divisors (see below), whose sum is σ = 77239981560. Its totient is φ = 21332947056.

The previous prime is 43401513209. The next prime is 43401513223. The reversal of 43401513212 is 21231510434.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91952123 + ... + 91952594.

It is an arithmetic number, because the mean of its divisors is an integer number (6436665130).

Almost surely, 2^43401513212 is an apocalyptic number.

It is an amenable number.

43401513212 is a deficient number, since it is larger than the sum of its proper divisors (33838468348).

43401513212 is a wasteful number, since it uses less digits than its factorization.

43401513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183904780 (or 183904778 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 43401513212 in words is "forty-three billion, four hundred one million, five hundred thirteen thousand, two hundred twelve".