2608778460 has 48 divisors (see below), whose sum is σ = 7424337312. Its totient is φ = 684268800.

The previous prime is 2608778441. The next prime is 2608778461. The reversal of 2608778460 is 648778062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2608778461) 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, 352731 + ... + 360050.

It is an arithmetic number, because the mean of its divisors is an integer number (154673694).

Almost surely, 2^2608778460 is an apocalyptic number.

2608778460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2608778460 is an abundant number, since it is smaller than the sum of its proper divisors (4815558852).

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

2608778460 is a wasteful number, since it uses less digits than its factorization.

2608778460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712854 (or 712852 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 2608778460 is about 51076.2024821736. The cubic root of 2608778460 is about 1376.6146910814.

The spelling of 2608778460 in words is "two billion, six hundred eight million, seven hundred seventy-eight thousand, four hundred sixty".