2549354851680 has 384 divisors, whose sum is σ = 10202485579776. Its totient is φ = 520534425600.

The previous prime is 2549354851643. The next prime is 2549354851697. The reversal of 2549354851680 is 861584539452.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 412720 + ... + 2295440.

It is an arithmetic number, because the mean of its divisors is an integer number (26568972864).

Almost surely, 2^{2549354851680} is an apocalyptic number.

2549354851680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549354851680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5101242789888).

2549354851680 is an abundant number, since it is smaller than the sum of its proper divisors (7653130728096).

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

2549354851680 is a wasteful number, since it uses less digits than its factorization.

2549354851680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882790 (or 1882782 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 60.

The spelling of 2549354851680 in words is "two trillion, five hundred forty-nine billion, three hundred fifty-four million, eight hundred fifty-one thousand, six hundred eighty".