2620231536 has 80 divisors (see below), whose sum is σ = 7413275520. Its totient is φ = 792549120.

The previous prime is 2620231517. The next prime is 2620231541. The reversal of 2620231536 is 6351320262.

2620231536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2620231536² = 13731226604497838592, which contains 22 as substring.

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, 1231 + ... + 72401.

It is an arithmetic number, because the mean of its divisors is an integer number (92665944).

Almost surely, 2^2620231536 is an apocalyptic number.

2620231536 is a gapful number since it is divisible by the number (26) 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 2620231536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706637760).

2620231536 is an abundant number, since it is smaller than the sum of its proper divisors (4793043984).

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

2620231536 is a wasteful number, since it uses less digits than its factorization.

2620231536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71254 (or 71248 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2620231536 is about 51188.1972333467. The cubic root of 2620231536 is about 1378.6262910622.

Adding to 2620231536 its reverse (6351320262), we get a palindrome (8971551798).

The spelling of 2620231536 in words is "two billion, six hundred twenty million, two hundred thirty-one thousand, five hundred thirty-six".