42623652420 has 144 divisors (see below), whose sum is σ = 130210254720. Its totient is φ = 11285803008.

The previous prime is 42623652419. The next prime is 42623652431. The reversal of 42623652420 is 2425632624.

42623652420 is a `hidden beast` number, since 4 + 2 + 623 + 6 + 5 + 2 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27339601 + ... + 27341159.

It is an arithmetic number, because the mean of its divisors is an integer number (904237880).

Almost surely, 2^42623652420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42623652420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65105127360).

42623652420 is an abundant number, since it is smaller than the sum of its proper divisors (87586602300).

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

42623652420 is a wasteful number, since it uses less digits than its factorization.

42623652420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 42623652420 in words is "forty-two billion, six hundred twenty-three million, six hundred fifty-two thousand, four hundred twenty".