1648281678164 has 24 divisors (see below), whose sum is σ = 3200053802400. Its totient is φ = 736520317280.

The previous prime is 1648281678151. The next prime is 1648281678179. The reversal of 1648281678164 is 4618761828461.

It is a super-2 number, since 2×1648281678164² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1648281678097 and 1648281678106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317463059 + ... + 317468250.

It is an arithmetic number, because the mean of its divisors is an integer number (133335575100).

Almost surely, 2^{1648281678164} is an apocalyptic number.

It is an amenable number.

1648281678164 is a deficient number, since it is larger than the sum of its proper divisors (1551772124236).

1648281678164 is a wasteful number, since it uses less digits than its factorization.

1648281678164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634931383 (or 634931381 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 62.

The spelling of 1648281678164 in words is "one trillion, six hundred forty-eight billion, two hundred eighty-one million, six hundred seventy-eight thousand, one hundred sixty-four".