2643531505433 has 48 divisors (see below), whose sum is σ = 3286466701056. Its totient is φ = 2082000061440.

The previous prime is 2643531505429. The next prime is 2643531505441. The reversal of 2643531505433 is 3345051353462.

It is not a de Polignac number, because 2643531505433 - 2² = 2643531505429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643531505493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 535450541 + ... + 535455477.

It is an arithmetic number, because the mean of its divisors is an integer number (68468056272).

Almost surely, 2^{2643531505433} is an apocalyptic number.

It is an amenable number.

2643531505433 is a deficient number, since it is larger than the sum of its proper divisors (642935195623).

2643531505433 is a wasteful number, since it uses less digits than its factorization.

2643531505433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954 (or 6941 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 44.

Adding to 2643531505433 its reverse (3345051353462), we get a palindrome (5988582858895).

The spelling of 2643531505433 in words is "two trillion, six hundred forty-three billion, five hundred thirty-one million, five hundred five thousand, four hundred thirty-three".