2153786358281 has 8 divisors (see below), whose sum is σ = 2298436208640. Its totient is φ = 2011131678528.

The previous prime is 2153786358257. The next prime is 2153786358287. The reversal of 2153786358281 is 1828536873512.

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

It is a cyclic number.

It is not a de Polignac number, because 2153786358281 - 2¹⁰ = 2153786357257 is a prime.

It is a super-2 number, since 2×2153786358281² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2153786358281.

It is not an unprimeable number, because it can be changed into a prime (2153786358287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498790421 + ... + 498794738.

It is an arithmetic number, because the mean of its divisors is an integer number (287304526080).

Almost surely, 2^{2153786358281} is an apocalyptic number.

It is an amenable number.

2153786358281 is a deficient number, since it is larger than the sum of its proper divisors (144649850359).

2153786358281 is a wasteful number, since it uses less digits than its factorization.

2153786358281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997585303.

The product of its digits is 19353600, while the sum is 59.

The spelling of 2153786358281 in words is "two trillion, one hundred fifty-three billion, seven hundred eighty-six million, three hundred fifty-eight thousand, two hundred eighty-one".