1008749146638 has 8 divisors (see below), whose sum is σ = 2017498293288. Its totient is φ = 336249715544.

The previous prime is 1008749146637. The next prime is 1008749146661. The reversal of 1008749146638 is 8366419478001.

1008749146638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1008749146638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008749146637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84062428881 + ... + 84062428892.

It is an arithmetic number, because the mean of its divisors is an integer number (252187286661).

Almost surely, 2^{1008749146638} is an apocalyptic number.

1008749146638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1008749146638 is a wasteful number, since it uses less digits than its factorization.

1008749146638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168124857778.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1008749146638 in words is "one trillion, eight billion, seven hundred forty-nine million, one hundred forty-six thousand, six hundred thirty-eight".