2061543432 has 64 divisors (see below), whose sum is σ = 5556862080. Its totient is φ = 633572352.

The previous prime is 2061543409. The next prime is 2061543457. The reversal of 2061543432 is 2343451602.

It is a super-2 number, since 2×2061543432² = 8499922644044677248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2061543432.

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, 298288 + ... + 305120.

It is an arithmetic number, because the mean of its divisors is an integer number (86825970).

Almost surely, 2^2061543432 is an apocalyptic number.

It is an amenable number.

2061543432 is an abundant number, since it is smaller than the sum of its proper divisors (3495318648).

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

2061543432 is a wasteful number, since it uses less digits than its factorization.

2061543432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822 (or 7818 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2061543432 is about 45404.2226230116. Note that the first 3 decimals coincide. The cubic root of 2061543432 is about 1272.7140239796.

The spelling of 2061543432 in words is "two billion, sixty-one million, five hundred forty-three thousand, four hundred thirty-two".