2654983278 has 64 divisors (see below), whose sum is σ = 6231456000. Its totient is φ = 835585632.

The previous prime is 2654983277. The next prime is 2654983291. The reversal of 2654983278 is 8723894562.

2654983278 is a `hidden beast` number, since 26 + 549 + 8 + 3 + 2 + 78 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654983273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310768 + ... + 319196.

It is an arithmetic number, because the mean of its divisors is an integer number (97366500).

Almost surely, 2^2654983278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2654983278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3115728000).

2654983278 is an abundant number, since it is smaller than the sum of its proper divisors (3576472722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2654983278 is a wasteful number, since it uses less digits than its factorization.

2654983278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766 (or 8760 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 2654983278 is about 51526.5298462840. The cubic root of 2654983278 is about 1384.6943815142.

The spelling of 2654983278 in words is "two billion, six hundred fifty-four million, nine hundred eighty-three thousand, two hundred seventy-eight".