2154360477671 has 2 divisors, whose sum is σ = 2154360477672. Its totient is φ = 2154360477670.

The previous prime is 2154360477641. The next prime is 2154360477707. The reversal of 2154360477671 is 1767740634512.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154360477671 - 2³⁴ = 2137180608487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154360477611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077180238835 + 1077180238836.

It is an arithmetic number, because the mean of its divisors is an integer number (1077180238836).

Almost surely, 2^{2154360477671} is an apocalyptic number.

2154360477671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154360477671 is an equidigital number, since it uses as much as digits as its factorization.

2154360477671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 2154360477671 in words is "two trillion, one hundred fifty-four billion, three hundred sixty million, four hundred seventy-seven thousand, six hundred seventy-one".