42818965621740 has 3456 divisors, whose sum is σ = 183627782553600. Its totient is φ = 8238348518400.

The previous prime is 42818965621669. The next prime is 42818965621769. The reversal of 42818965621740 is 4712656981824.

It is a happy number.

42818965621740 is a `hidden beast` number, since 4 + 2 + 8 + 18 + 9 + 6 + 562 + 17 + 40 = 666.

42818965621740 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 1151 ways as a sum of consecutive naturals, for example, 337157209557 + ... + 337157209683.

Almost surely, 2^{42818965621740} 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 42818965621740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91813891276800).

42818965621740 is an abundant number, since it is smaller than the sum of its proper divisors (140808816931860).

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

42818965621740 is a wasteful number, since it uses less digits than its factorization.

42818965621740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 42818965621740 in words is "forty-two trillion, eight hundred eighteen billion, nine hundred sixty-five million, six hundred twenty-one thousand, seven hundred forty".