2620526064 has 320 divisors, whose sum is σ = 8099481600. Its totient is φ = 722681856.

The previous prime is 2620526039. The next prime is 2620526099. The reversal of 2620526064 is 4606250262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33171177 + ... + 33171255.

It is an arithmetic number, because the mean of its divisors is an integer number (25310880).

Almost surely, 2^2620526064 is an apocalyptic number.

2620526064 is a gapful number since it is divisible by the number (24) 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 2620526064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4049740800).

2620526064 is an abundant number, since it is smaller than the sum of its proper divisors (5478955536).

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

2620526064 is a wasteful number, since it uses less digits than its factorization.

2620526064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2620526064 is about 51191.0740657002. The cubic root of 2620526064 is about 1378.6779441096.

The spelling of 2620526064 in words is "two billion, six hundred twenty million, five hundred twenty-six thousand, sixty-four".