3621432543 has 16 divisors (see below), whose sum is σ = 4949210112. Its totient is φ = 2354040000.

The previous prime is 3621432533. The next prime is 3621432553. The reversal of 3621432543 is 3452341263.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3621432533) and next prime (3621432553).

It is not a de Polignac number, because 3621432543 - 2¹⁴ = 3621416159 is a prime.

It is a super-2 number, since 2×3621432543² = 26229547326998893698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621432533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232428 + ... + 247518.

It is an arithmetic number, because the mean of its divisors is an integer number (309325632).

Almost surely, 2^3621432543 is an apocalyptic number.

3621432543 is a deficient number, since it is larger than the sum of its proper divisors (1327777569).

3621432543 is a wasteful number, since it uses less digits than its factorization.

3621432543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17086.

The product of its digits is 51840, while the sum is 33.

The square root of 3621432543 is about 60178.3394835717. The cubic root of 3621432543 is about 1535.6543229307.

The spelling of 3621432543 in words is "three billion, six hundred twenty-one million, four hundred thirty-two thousand, five hundred forty-three".