3545786643623 has 24 divisors (see below), whose sum is σ = 4367467566000. Its totient is φ = 2860369521408.

The previous prime is 3545786643569. The next prime is 3545786643677. The reversal of 3545786643623 is 3263466875453.

It is an interprime number because it is at equal distance from previous prime (3545786643569) and next prime (3545786643677).

It is not a de Polignac number, because 3545786643623 - 2⁸ = 3545786643367 is a prime.

It is a super-2 number, since 2×3545786643623² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545786645623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34350533 + ... + 34453601.

It is an arithmetic number, because the mean of its divisors is an integer number (181977815250).

Almost surely, 2^{3545786643623} is an apocalyptic number.

3545786643623 is a deficient number, since it is larger than the sum of its proper divisors (821680922377).

3545786643623 is a wasteful number, since it uses less digits than its factorization.

3545786643623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144399 (or 144392 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 62.

The spelling of 3545786643623 in words is "three trillion, five hundred forty-five billion, seven hundred eighty-six million, six hundred forty-three thousand, six hundred twenty-three".