2622455321261 has 4 divisors (see below), whose sum is σ = 2624994001212. Its totient is φ = 2619916641312.

The previous prime is 2622455321249. The next prime is 2622455321323. The reversal of 2622455321261 is 1621235542262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2459486475625 + 162968845636 = 1568275^2 + 403694^2 .

It is a cyclic number.

It is not a de Polignac number, because 2622455321261 - 2⁶ = 2622455321197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622455321201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269338426 + ... + 1269340491.

It is an arithmetic number, because the mean of its divisors is an integer number (656248500303).

Almost surely, 2^{2622455321261} is an apocalyptic number.

It is an amenable number.

2622455321261 is a deficient number, since it is larger than the sum of its proper divisors (2538679951).

2622455321261 is a wasteful number, since it uses less digits than its factorization.

2622455321261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538679950.

The product of its digits is 345600, while the sum is 41.

The spelling of 2622455321261 in words is "two trillion, six hundred twenty-two billion, four hundred fifty-five million, three hundred twenty-one thousand, two hundred sixty-one".