2658669480 has 80 divisors (see below), whose sum is σ = 8936094420. Its totient is φ = 708977664.

The previous prime is 2658669451. The next prime is 2658669547. The reversal of 2658669480 is 849668562.

It is a happy number.

2658669480 is a `hidden beast` number, since 26 + 5 + 86 + 69 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2652044004 + 6625476 = 51498^2 + 2574^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 407049 + ... + 413528.

Almost surely, 2^2658669480 is an apocalyptic number.

2658669480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658669480 is an abundant number, since it is smaller than the sum of its proper divisors (6277424940).

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

2658669480 is a wasteful number, since it uses less digits than its factorization.

2658669480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820600 (or 820587 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 2658669480 is about 51562.2873813798. The cubic root of 2658669480 is about 1385.3349257559.

The spelling of 2658669480 in words is "two billion, six hundred fifty-eight million, six hundred sixty-nine thousand, four hundred eighty".