2654406633621 has 4 divisors (see below), whose sum is σ = 3539208844832. Its totient is φ = 1769604422412.

The previous prime is 2654406633581. The next prime is 2654406633631. The reversal of 2654406633621 is 1263366044562.

2654406633621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2654406633621 - 2⁷ = 2654406633493 is a prime.

It is a super-2 number, since 2×2654406633621² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654406633631) 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, 442401105601 + ... + 442401105606.

It is an arithmetic number, because the mean of its divisors is an integer number (884802211208).

Almost surely, 2^{2654406633621} is an apocalyptic number.

It is an amenable number.

2654406633621 is a deficient number, since it is larger than the sum of its proper divisors (884802211211).

2654406633621 is an equidigital number, since it uses as much as digits as its factorization.

2654406633621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884802211210.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 2654406633621 in words is "two trillion, six hundred fifty-four billion, four hundred six million, six hundred thirty-three thousand, six hundred twenty-one".