4088752045661 has 4 divisors (see below), whose sum is σ = 4091894823324. Its totient is φ = 4085609268000.

The previous prime is 4088752045607. The next prime is 4088752045673. The reversal of 4088752045661 is 1665402578804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 577554400900 + 3511197644761 = 759970^2 + 1873819^2 .

It is a cyclic number.

It is not a de Polignac number, because 4088752045661 - 2¹⁸ = 4088751783517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4088752045597 and 4088752045606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4088752015661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571386880 + ... + 1571389481.

It is an arithmetic number, because the mean of its divisors is an integer number (1022973705831).

Almost surely, 2^{4088752045661} is an apocalyptic number.

It is an amenable number.

4088752045661 is a deficient number, since it is larger than the sum of its proper divisors (3142777663).

4088752045661 is a wasteful number, since it uses less digits than its factorization.

4088752045661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142777662.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 4088752045661 in words is "four trillion, eighty-eight billion, seven hundred fifty-two million, forty-five thousand, six hundred sixty-one".