2654888691 has 32 divisors (see below), whose sum is σ = 4613027328. Its totient is φ = 1318003200.

The previous prime is 2654888681. The next prime is 2654888711. The reversal of 2654888691 is 1968884562.

It is a happy number.

It is not a de Polignac number, because 2654888691 - 2⁵ = 2654888659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2654888611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281385 + ... + 290666.

It is an arithmetic number, because the mean of its divisors is an integer number (144157104).

Almost surely, 2^2654888691 is an apocalyptic number.

2654888691 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2654888691 is a deficient number, since it is larger than the sum of its proper divisors (1958138637).

2654888691 is a wasteful number, since it uses less digits than its factorization.

2654888691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572091.

The product of its digits is 6635520, while the sum is 57.

The square root of 2654888691 is about 51525.6119905431. The cubic root of 2654888691 is about 1384.6779375133.

The spelling of 2654888691 in words is "two billion, six hundred fifty-four million, eight hundred eighty-eight thousand, six hundred ninety-one".