1648859140992 has 128 divisors (see below), whose sum is σ = 5299904528640. Its totient is φ = 443390681088.

The previous prime is 1648859140967. The next prime is 1648859140997. The reversal of 1648859140992 is 2990419588461.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1648859140992² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648859140997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17995918 + ... + 18087309.

It is an arithmetic number, because the mean of its divisors is an integer number (41405504130).

Almost surely, 2^{1648859140992} is an apocalyptic number.

1648859140992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648859140992 is an abundant number, since it is smaller than the sum of its proper divisors (3651045387648).

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

1648859140992 is a wasteful number, since it uses less digits than its factorization.

1648859140992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36083268 (or 36083256 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 66.

The spelling of 1648859140992 in words is "one trillion, six hundred forty-eight billion, eight hundred fifty-nine million, one hundred forty thousand, nine hundred ninety-two".