4047640163541 has 24 divisors (see below), whose sum is σ = 6305854723896. Its totient is φ = 2487087123840.

The previous prime is 4047640163533. The next prime is 4047640163549. The reversal of 4047640163541 is 1453610467404.

4047640163541 is a `hidden beast` number, since 4 + 0 + 4 + 7 + 6 + 4 + 0 + 1 + 635 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (4047640163533) and next prime (4047640163549).

It can be written as a sum of positive squares in 4 ways, for example, as 4609052100 + 4043031111441 = 67890^2 + 2010729^2 .

It is not a de Polignac number, because 4047640163541 - 2³ = 4047640163533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047640163549) 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, 26091510 + ... + 26246183.

It is an arithmetic number, because the mean of its divisors is an integer number (262743946829).

Almost surely, 2^{4047640163541} is an apocalyptic number.

It is an amenable number.

4047640163541 is a deficient number, since it is larger than the sum of its proper divisors (2258214560355).

4047640163541 is a wasteful number, since it uses less digits than its factorization.

4047640163541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52338373 (or 52338370 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 4047640163541 in words is "four trillion, forty-seven billion, six hundred forty million, one hundred sixty-three thousand, five hundred forty-one".