2355403049681 has 32 divisors (see below), whose sum is σ = 2688018988032. Its totient is φ = 2043011741760.

The previous prime is 2355403049651. The next prime is 2355403049729. The reversal of 2355403049681 is 1869403045532.

It is not a de Polignac number, because 2355403049681 - 2⁶ = 2355403049617 is a prime.

It is a super-2 number, since 2×2355403049681² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2355403049611) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 182682071 + ... + 182694963.

It is an arithmetic number, because the mean of its divisors is an integer number (84000593376).

Almost surely, 2^{2355403049681} is an apocalyptic number.

It is an amenable number.

2355403049681 is a deficient number, since it is larger than the sum of its proper divisors (332615938351).

2355403049681 is a wasteful number, since it uses less digits than its factorization.

2355403049681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14693.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 2355403049681 in words is "two trillion, three hundred fifty-five billion, four hundred three million, forty-nine thousand, six hundred eighty-one".