43521551151 has 8 divisors (see below), whose sum is σ = 62492483760. Its totient is φ = 26782492992.

The previous prime is 43521551113. The next prime is 43521551153. The reversal of 43521551151 is 15115512534.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43521551151 - 2⁷ = 43521551023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43521551153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557968566 + ... + 557968643.

It is an arithmetic number, because the mean of its divisors is an integer number (7811560470).

Almost surely, 2^43521551151 is an apocalyptic number.

43521551151 is a deficient number, since it is larger than the sum of its proper divisors (18970932609).

43521551151 is a wasteful number, since it uses less digits than its factorization.

43521551151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115937225.

The product of its digits is 15000, while the sum is 33.

The spelling of 43521551151 in words is "forty-three billion, five hundred twenty-one million, five hundred fifty-one thousand, one hundred fifty-one".