2620642006626 has 16 divisors (see below), whose sum is σ = 5990038872384. Its totient is φ = 748754859024.

The previous prime is 2620642006529. The next prime is 2620642006637. The reversal of 2620642006626 is 6266002460262.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 62396238253 = 2620642006626 / (2 + 6 + 2 + 0 + 6 + 4 + 2 + 0 + 0 + 6 + 6 + 2 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31198119085 + ... + 31198119168.

It is an arithmetic number, because the mean of its divisors is an integer number (374377429524).

Almost surely, 2^{2620642006626} is an apocalyptic number.

2620642006626 is an abundant number, since it is smaller than the sum of its proper divisors (3369396865758).

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

2620642006626 is a wasteful number, since it uses less digits than its factorization.

2620642006626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62396238265.

The product of its (nonzero) digits is 497664, while the sum is 42.

Adding to 2620642006626 its reverse (6266002460262), we get a palindrome (8886644466888).

The spelling of 2620642006626 in words is "two trillion, six hundred twenty billion, six hundred forty-two million, six thousand, six hundred twenty-six".