2626639002 has 96 divisors (see below), whose sum is σ = 6690640320. Its totient is φ = 765624960.

The previous prime is 2626638979. The next prime is 2626639003. The reversal of 2626639002 is 2009366262.

2626639002 is a `hidden beast` number, since 2 + 6 + 266 + 390 + 0 + 2 = 666.

2626639002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2626639003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109102 + ... + 130982.

It is an arithmetic number, because the mean of its divisors is an integer number (69694170).

Almost surely, 2^2626639002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2626639002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3345320160).

2626639002 is an abundant number, since it is smaller than the sum of its proper divisors (4064001318).

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

2626639002 is a wasteful number, since it uses less digits than its factorization.

2626639002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21930 (or 21918 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 2626639002 is about 51250.7463555410. The cubic root of 2626639002 is about 1379.7491320917.

The spelling of 2626639002 in words is "two billion, six hundred twenty-six million, six hundred thirty-nine thousand, two".