26770245551 has 4 divisors (see below), whose sum is σ = 30594566352. Its totient is φ = 22945924752.

The previous prime is 26770245539. The next prime is 26770245581. The reversal of 26770245551 is 15554207762.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26770245551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26770245521) 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, 1912160390 + ... + 1912160403.

It is an arithmetic number, because the mean of its divisors is an integer number (7648641588).

Almost surely, 2^26770245551 is an apocalyptic number.

26770245551 is a deficient number, since it is larger than the sum of its proper divisors (3824320801).

26770245551 is an equidigital number, since it uses as much as digits as its factorization.

26770245551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824320800.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 26770245551 in words is "twenty-six billion, seven hundred seventy million, two hundred forty-five thousand, five hundred fifty-one".