2153454357731 has 16 divisors (see below), whose sum is σ = 2183478105600. Its totient is φ = 2123567506368.

The previous prime is 2153454357709. The next prime is 2153454357737. The reversal of 2153454357731 is 1377534543512.

It is a cyclic number.

It is not a de Polignac number, because 2153454357731 - 2¹⁸ = 2153454095587 is a prime.

It is a super-2 number, since 2×2153454357731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153454357731.

It is not an unprimeable number, because it can be changed into a prime (2153454357737) 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, 53252786 + ... + 53293208.

It is an arithmetic number, because the mean of its divisors is an integer number (136467381600).

Almost surely, 2^{2153454357731} is an apocalyptic number.

2153454357731 is a deficient number, since it is larger than the sum of its proper divisors (30023747869).

2153454357731 is an equidigital number, since it uses as much as digits as its factorization.

2153454357731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42098.

The product of its digits is 5292000, while the sum is 50.

The spelling of 2153454357731 in words is "two trillion, one hundred fifty-three billion, four hundred fifty-four million, three hundred fifty-seven thousand, seven hundred thirty-one".