4361421656 has 8 divisors (see below), whose sum is σ = 8177665620. Its totient is φ = 2180710824.

The previous prime is 4361421653. The next prime is 4361421683. The reversal of 4361421656 is 6561241634.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4361421656² = 38043997722851564672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4361421653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272588846 + ... + 272588861.

Almost surely, 2^4361421656 is an apocalyptic number.

It is an amenable number.

4361421656 is a deficient number, since it is larger than the sum of its proper divisors (3816243964).

4361421656 is a wasteful number, since it uses less digits than its factorization.

4361421656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545177713 (or 545177709 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 4361421656 is about 66041.0603791308. The cubic root of 4361421656 is about 1633.8393763209.

The spelling of 4361421656 in words is "four billion, three hundred sixty-one million, four hundred twenty-one thousand, six hundred fifty-six".