7138633746618 has 96 divisors (see below), whose sum is σ = 17886623332032. Its totient is φ = 2033586316800.

The previous prime is 7138633746613. The next prime is 7138633746619. The reversal of 7138633746618 is 8166473368317.

It is a happy number.

7138633746618 is a `hidden beast` number, since 7 + 1 + 3 + 8 + 6 + 3 + 3 + 7 + 4 + 6 + 618 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7138633746613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1628053 + ... + 4114343.

It is an arithmetic number, because the mean of its divisors is an integer number (186318993042).

Almost surely, 2^{7138633746618} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7138633746618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8943311666016).

7138633746618 is an abundant number, since it is smaller than the sum of its proper divisors (10747989585414).

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

7138633746618 is a wasteful number, since it uses less digits than its factorization.

7138633746618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487180 (or 2487177 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 7138633746618 in words is "seven trillion, one hundred thirty-eight billion, six hundred thirty-three million, seven hundred forty-six thousand, six hundred eighteen".