26720211260651 has 4 divisors (see below), whose sum is σ = 26720966893992. Its totient is φ = 26719455627312.

The previous prime is 26720211260629. The next prime is 26720211260719. The reversal of 26720211260651 is 15606211202762.

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

It is a cyclic number.

It is not a de Polignac number, because 26720211260651 - 2²⁶ = 26720144151787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26720211260599 and 26720211260608.

It is not an unprimeable number, because it can be changed into a prime (26720211260551) 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, 377763626 + ... + 377834351.

It is an arithmetic number, because the mean of its divisors is an integer number (6680241723498).

Almost surely, 2^{26720211260651} is an apocalyptic number.

26720211260651 is a deficient number, since it is larger than the sum of its proper divisors (755633341).

26720211260651 is an equidigital number, since it uses as much as digits as its factorization.

26720211260651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755633340.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 26720211260651 in words is "twenty-six trillion, seven hundred twenty billion, two hundred eleven million, two hundred sixty thousand, six hundred fifty-one".