2659377620 has 24 divisors (see below), whose sum is σ = 5588405088. Its totient is φ = 1063044000.

The previous prime is 2659377593. The next prime is 2659377653. The reversal of 2659377620 is 267739562.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12806 + ... + 74045.

It is an arithmetic number, because the mean of its divisors is an integer number (232850212).

Almost surely, 2^2659377620 is an apocalyptic number.

2659377620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2659377620 is an abundant number, since it is smaller than the sum of its proper divisors (2929027468).

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

2659377620 is a wasteful number, since it uses less digits than its factorization.

2659377620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88391 (or 88389 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 2659377620 is about 51569.1537646295. The cubic root of 2659377620 is about 1385.4579100778.

The spelling of 2659377620 in words is "two billion, six hundred fifty-nine million, three hundred seventy-seven thousand, six hundred twenty".