43521355142140 has 96 divisors (see below), whose sum is σ = 98663123865600. Its totient is φ = 16073864110080.

The previous prime is 43521355142087. The next prime is 43521355142147. The reversal of 43521355142140 is 4124155312534.

It is a junction number, because it is equal to n+sod(n) for n = 43521355142093 and 43521355142102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43521355142147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 829381 + ... + 9366460.

It is an arithmetic number, because the mean of its divisors is an integer number (1027740873600).

Almost surely, 2^{43521355142140} is an apocalyptic number.

It is an amenable number.

43521355142140 is an abundant number, since it is smaller than the sum of its proper divisors (55141768723460).

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

43521355142140 is a wasteful number, since it uses less digits than its factorization.

43521355142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196155 (or 10196153 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 43521355142140 in words is "forty-three trillion, five hundred twenty-one billion, three hundred fifty-five million, one hundred forty-two thousand, one hundred forty".