2626941640 has 16 divisors (see below), whose sum is σ = 5910618780. Its totient is φ = 1050776640.

The previous prime is 2626941631. The next prime is 2626941671. The reversal of 2626941640 is 461496262.

It is a happy number.

2626941640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2591013604 + 35928036 = 50902^2 + 5994^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 65673541 = 2626941640 / (2 + 6 + 2 + 6 + 9 + 4 + 1 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2626941593 and 2626941602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32836731 + ... + 32836810.

Almost surely, 2^2626941640 is an apocalyptic number.

2626941640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2626941640 is an abundant number, since it is smaller than the sum of its proper divisors (3283677140).

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

2626941640 is a wasteful number, since it uses less digits than its factorization.

2626941640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65673552 (or 65673548 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 2626941640 is about 51253.6987933554. The cubic root of 2626941640 is about 1379.8021210358.

The spelling of 2626941640 in words is "two billion, six hundred twenty-six million, nine hundred forty-one thousand, six hundred forty".