2621671026 has 16 divisors (see below), whose sum is σ = 5646676224. Its totient is φ = 806667984.

The previous prime is 2621671009. The next prime is 2621671027. The reversal of 2621671026 is 6201761262.

It is not an unprimeable number, because it can be changed into a prime (2621671027) 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, 16805506 + ... + 16805661.

It is an arithmetic number, because the mean of its divisors is an integer number (352917264).

Almost surely, 2^2621671026 is an apocalyptic number.

2621671026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2621671026 is an abundant number, since it is smaller than the sum of its proper divisors (3025005198).

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

2621671026 is a wasteful number, since it uses less digits than its factorization.

2621671026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33611185.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2621671026 is about 51202.2560635759. The cubic root of 2621671026 is about 1378.8787058365.

The spelling of 2621671026 in words is "two billion, six hundred twenty-one million, six hundred seventy-one thousand, twenty-six".