3658287861 has 32 divisors (see below), whose sum is σ = 5522688000. Its totient is φ = 2392676784.

The previous prime is 3658287859. The next prime is 3658287869. The reversal of 3658287861 is 1687828563.

3658287861 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 not a de Polignac number, because 3658287861 - 2¹ = 3658287859 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3658287798 and 3658287807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3658287869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894820 + ... + 898898.

It is an arithmetic number, because the mean of its divisors is an integer number (172584000).

Almost surely, 2^3658287861 is an apocalyptic number.

It is an amenable number.

3658287861 is a deficient number, since it is larger than the sum of its proper divisors (1864400139).

3658287861 is a wasteful number, since it uses less digits than its factorization.

3658287861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710 (or 4704 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 3658287861 is about 60483.7818014052. The cubic root of 3658287861 is about 1540.8462011881.

The spelling of 3658287861 in words is "three billion, six hundred fifty-eight million, two hundred eighty-seven thousand, eight hundred sixty-one".