2654781549 has 16 divisors (see below), whose sum is σ = 4111701120. Its totient is φ = 1492148160.

The previous prime is 2654781541. The next prime is 2654781553. The reversal of 2654781549 is 9451874562.

2654781549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2654781549 - 2³ = 2654781541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654781541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034934 + ... + 1037495.

It is an arithmetic number, because the mean of its divisors is an integer number (256981320).

Almost surely, 2^2654781549 is an apocalyptic number.

It is an amenable number.

2654781549 is a deficient number, since it is larger than the sum of its proper divisors (1456919571).

2654781549 is a wasteful number, since it uses less digits than its factorization.

2654781549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072500.

The product of its digits is 2419200, while the sum is 51.

The square root of 2654781549 is about 51524.5722835231. The cubic root of 2654781549 is about 1384.6593103470.

The spelling of 2654781549 in words is "two billion, six hundred fifty-four million, seven hundred eighty-one thousand, five hundred forty-nine".