4623554640 has 160 divisors (see below), whose sum is σ = 14749413120. Its totient is φ = 1197600768.

The previous prime is 4623554629. The next prime is 4623554653. The reversal of 4623554640 is 464553264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1308396 + ... + 1311924.

It is an arithmetic number, because the mean of its divisors is an integer number (92183832).

Almost surely, 2^4623554640 is an apocalyptic number.

4623554640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4623554640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7374706560).

4623554640 is an abundant number, since it is smaller than the sum of its proper divisors (10125858480).

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

4623554640 is a wasteful number, since it uses less digits than its factorization.

4623554640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The square root of 4623554640 is about 67996.7252152631. The cubic root of 4623554640 is about 1665.9373488149.

The spelling of 4623554640 in words is "four billion, six hundred twenty-three million, five hundred fifty-four thousand, six hundred forty".