2650538880 has 288 divisors, whose sum is σ = 10062987480. Its totient is φ = 642385920.

The previous prime is 2650538879. The next prime is 2650538903. The reversal of 2650538880 is 888350562.

2650538880 = 6915² + 6916² + ... + 6969².

It is a happy number.

2650538880 is a `hidden beast` number, since 265 + 0 + 5 + 388 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 695059 + ... + 698861.

Almost surely, 2^2650538880 is an apocalyptic number.

2650538880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2650538880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5031493740).

2650538880 is an abundant number, since it is smaller than the sum of its proper divisors (7412448600).

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

2650538880 is a wasteful number, since it uses less digits than its factorization.

2650538880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850 (or 3824 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 2650538880 is about 51483.3845041291. The cubic root of 2650538880 is about 1383.9212981631.

The spelling of 2650538880 in words is "two billion, six hundred fifty million, five hundred thirty-eight thousand, eight hundred eighty".