1648778101342 has 8 divisors (see below), whose sum is σ = 2476434217896. Its totient is φ = 823300028712.

The previous prime is 1648778101319. The next prime is 1648778101367. The reversal of 1648778101342 is 2431018778461.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1648778101342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544509088 + ... + 544512115.

It is an arithmetic number, because the mean of its divisors is an integer number (309554277237).

Almost surely, 2^{1648778101342} is an apocalyptic number.

1648778101342 is a deficient number, since it is larger than the sum of its proper divisors (827656116554).

1648778101342 is a wasteful number, since it uses less digits than its factorization.

1648778101342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089021962.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 1648778101342 in words is "one trillion, six hundred forty-eight billion, seven hundred seventy-eight million, one hundred one thousand, three hundred forty-two".