2654509463261 has 2 divisors, whose sum is σ = 2654509463262. Its totient is φ = 2654509463260.

The previous prime is 2654509463251. The next prime is 2654509463273. The reversal of 2654509463261 is 1623649054562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2186405822500 + 468103640761 = 1478650^2 + 684181^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654509463261 - 2³⁰ = 2653435721437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654509463251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327254731630 + 1327254731631.

It is an arithmetic number, because the mean of its divisors is an integer number (1327254731631).

Almost surely, 2^{2654509463261} is an apocalyptic number.

It is an amenable number.

2654509463261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654509463261 is an equidigital number, since it uses as much as digits as its factorization.

2654509463261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 2654509463261 in words is "two trillion, six hundred fifty-four billion, five hundred nine million, four hundred sixty-three thousand, two hundred sixty-one".