2054536541669 has 2 divisors, whose sum is σ = 2054536541670. Its totient is φ = 2054536541668.

The previous prime is 2054536541663. The next prime is 2054536541683. The reversal of 2054536541669 is 9661456354502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1458032100100 + 596504441569 = 1207490^2 + 772337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054536541669 is a prime.

It is a super-2 number, since 2×2054536541669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054536541663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027268270834 + 1027268270835.

It is an arithmetic number, because the mean of its divisors is an integer number (1027268270835).

Almost surely, 2^{2054536541669} is an apocalyptic number.

It is an amenable number.

2054536541669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054536541669 is an equidigital number, since it uses as much as digits as its factorization.

2054536541669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 2054536541669 in words is "two trillion, fifty-four billion, five hundred thirty-six million, five hundred forty-one thousand, six hundred sixty-nine".