4053691644 has 48 divisors (see below), whose sum is σ = 9698699808. Its totient is φ = 1317259008.

The previous prime is 4053691643. The next prime is 4053691693. The reversal of 4053691644 is 4461963504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4053691596 and 4053691605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4053691643) 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, 79554 + ... + 120150.

It is an arithmetic number, because the mean of its divisors is an integer number (202056246).

Almost surely, 2^4053691644 is an apocalyptic number.

It is an amenable number.

4053691644 is an abundant number, since it is smaller than the sum of its proper divisors (5645008164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4053691644 is a wasteful number, since it uses less digits than its factorization.

4053691644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40814 (or 40812 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 4053691644 is about 63668.6079948353. The cubic root of 4053691644 is about 1594.4720223896.

The spelling of 4053691644 in words is "four billion, fifty-three million, six hundred ninety-one thousand, six hundred forty-four".