2654662391 has 2 divisors, whose sum is σ = 2654662392. Its totient is φ = 2654662390.

The previous prime is 2654662303. The next prime is 2654662411. The reversal of 2654662391 is 1932664562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2654662391 - 2³⁰ = 1580920567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654667391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327331195 + 1327331196.

It is an arithmetic number, because the mean of its divisors is an integer number (1327331196).

Almost surely, 2^2654662391 is an apocalyptic number.

2654662391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654662391 is an equidigital number, since it uses as much as digits as its factorization.

2654662391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 2654662391 is about 51523.4159484792. The cubic root of 2654662391 is about 1384.6385935511.

The spelling of 2654662391 in words is "two billion, six hundred fifty-four million, six hundred sixty-two thousand, three hundred ninety-one".