2625996646 has 16 divisors (see below), whose sum is σ = 4847994144. Its totient is φ = 1038855744.

The previous prime is 2625996623. The next prime is 2625996649. The reversal of 2625996646 is 6466995262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625996649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214095 + ... + 7214458.

It is an arithmetic number, because the mean of its divisors is an integer number (302999634).

Almost surely, 2^2625996646 is an apocalyptic number.

2625996646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2625996646 is a deficient number, since it is larger than the sum of its proper divisors (2221997498).

2625996646 is a wasteful number, since it uses less digits than its factorization.

2625996646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428575.

The product of its digits is 8398080, while the sum is 55.

The square root of 2625996646 is about 51244.4791758098. The cubic root of 2625996646 is about 1379.6366483699.

The spelling of 2625996646 in words is "two billion, six hundred twenty-five million, nine hundred ninety-six thousand, six hundred forty-six".