5661788143 has 16 divisors (see below), whose sum is σ = 6238863360. Its totient is φ = 5095288800.

The previous prime is 5661788101. The next prime is 5661788147. The reversal of 5661788143 is 3418871665.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5661788143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661788147) 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, 664933 + ... + 673393.

It is an arithmetic number, because the mean of its divisors is an integer number (389928960).

Almost surely, 2^5661788143 is an apocalyptic number.

5661788143 is a deficient number, since it is larger than the sum of its proper divisors (577075217).

5661788143 is a wasteful number, since it uses less digits than its factorization.

5661788143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078.

The product of its digits is 967680, while the sum is 49.

The square root of 5661788143 is about 75244.8545948492. The cubic root of 5661788143 is about 1782.3153121039.

The spelling of 5661788143 in words is "five billion, six hundred sixty-one million, seven hundred eighty-eight thousand, one hundred forty-three".