2620601331 has 32 divisors (see below), whose sum is σ = 3681984768. Its totient is φ = 1655821440.

The previous prime is 2620601311. The next prime is 2620601363. The reversal of 2620601331 is 1331060262.

It is a happy number.

It is not a de Polignac number, because 2620601331 - 2¹³ = 2620593139 is a prime.

It is a super-2 number, since 2×2620601331² = 13735102672077943122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2620601311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3230916 + ... + 3231726.

It is an arithmetic number, because the mean of its divisors is an integer number (115062024).

Almost surely, 2^2620601331 is an apocalyptic number.

2620601331 is a deficient number, since it is larger than the sum of its proper divisors (1061383437).

2620601331 is a wasteful number, since it uses less digits than its factorization.

2620601331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2620601331 is about 51191.8092178817. The cubic root of 2620601331 is about 1378.6911434898.

Adding to 2620601331 its reverse (1331060262), we get a palindrome (3951661593).

The spelling of 2620601331 in words is "two billion, six hundred twenty million, six hundred one thousand, three hundred thirty-one".