2154962344441 has 27 divisors (see below), whose sum is σ = 2220394251621. Its totient is φ = 2091447297048.

The previous prime is 2154962344391. The next prime is 2154962344463. The reversal of 2154962344441 is 1444432694512.

The square root of 2154962344441 is 1467979.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2154962344441 - 2²¹ = 2154960247289 is a prime.

It is a super-2 number, since 2×2154962344441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154962345441) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12038895690 + ... + 12038895868.

Almost surely, 2^{2154962344441} is an apocalyptic number.

2154962344441 is the 1467979-th square number.

2154962344441 is the 733990-th centered octagonal number.

It is an amenable number.

2154962344441 is a deficient number, since it is larger than the sum of its proper divisors (65431907180).

2154962344441 is an frugal number, since it uses more digits than its factorization.

2154962344441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 377 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 49.

Multiplying 2154962344441 by its sum of digits (49), we get a square (105593154877609 = 10275853²).

The spelling of 2154962344441 in words is "two trillion, one hundred fifty-four billion, nine hundred sixty-two million, three hundred forty-four thousand, four hundred forty-one".