2054237552649 has 12 divisors (see below), whose sum is σ = 3141775080756. Its totient is φ = 1288933366272.

The previous prime is 2054237552641. The next prime is 2054237552681. The reversal of 2054237552649 is 9462557324502.

2054237552649 is a `hidden beast` number, since 2 + 0 + 5 + 4 + 2 + 3 + 75 + 526 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1894931199225 + 159306353424 = 1376565^2 + 399132^2 .

It is not a de Polignac number, because 2054237552649 - 2³ = 2054237552641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2054237552595 and 2054237552604.

It is not an unprimeable number, because it can be changed into a prime (2054237552641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6713194464 + ... + 6713194769.

It is an arithmetic number, because the mean of its divisors is an integer number (261814590063).

Almost surely, 2^{2054237552649} is an apocalyptic number.

It is an amenable number.

2054237552649 is a deficient number, since it is larger than the sum of its proper divisors (1087537528107).

2054237552649 is a wasteful number, since it uses less digits than its factorization.

2054237552649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426389256 (or 13426389253 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 2054237552649 in words is "two trillion, fifty-four billion, two hundred thirty-seven million, five hundred fifty-two thousand, six hundred forty-nine".