4051720887 has 4 divisors (see below), whose sum is σ = 5402294520. Its totient is φ = 2701147256.

The previous prime is 4051720879. The next prime is 4051720889. The reversal of 4051720887 is 7880271504.

4051720887 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4051720887 - 2³ = 4051720879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051720889) 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, 675286812 + ... + 675286817.

It is an arithmetic number, because the mean of its divisors is an integer number (1350573630).

Almost surely, 2^4051720887 is an apocalyptic number.

4051720887 is a deficient number, since it is larger than the sum of its proper divisors (1350573633).

4051720887 is a wasteful number, since it uses less digits than its factorization.

4051720887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350573632.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 4051720887 is about 63653.1294360301. The cubic root of 4051720887 is about 1594.2135891276.

The spelling of 4051720887 in words is "four billion, fifty-one million, seven hundred twenty thousand, eight hundred eighty-seven".