2628516380 has 48 divisors (see below), whose sum is σ = 6319036416. Its totient is φ = 899691840.

The previous prime is 2628516367. The next prime is 2628516403. The reversal of 2628516380 is 836158262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69515 + ... + 100445.

It is an arithmetic number, because the mean of its divisors is an integer number (131646592).

Almost surely, 2^2628516380 is an apocalyptic number.

2628516380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2628516380 is an abundant number, since it is smaller than the sum of its proper divisors (3690520036).

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

2628516380 is a wasteful number, since it uses less digits than its factorization.

2628516380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31554 (or 31552 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2628516380 is about 51269.0587001556. The cubic root of 2628516380 is about 1380.0777768948.

The spelling of 2628516380 in words is "two billion, six hundred twenty-eight million, five hundred sixteen thousand, three hundred eighty".