26725156957 has 2 divisors, whose sum is σ = 26725156958. Its totient is φ = 26725156956.

The previous prime is 26725156951. The next prime is 26725157057. The reversal of 26725156957 is 75965152762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15341547321 + 11383609636 = 123861^2 + 106694^2 .

It is a cyclic number.

It is not a de Polignac number, because 26725156957 - 2¹⁵ = 26725124189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26725156898 and 26725156907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26725156951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13362578478 + 13362578479.

It is an arithmetic number, because the mean of its divisors is an integer number (13362578479).

Almost surely, 2^26725156957 is an apocalyptic number.

It is an amenable number.

26725156957 is a deficient number, since it is larger than the sum of its proper divisors (1).

26725156957 is an equidigital number, since it uses as much as digits as its factorization.

26725156957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938000, while the sum is 55.

The spelling of 26725156957 in words is "twenty-six billion, seven hundred twenty-five million, one hundred fifty-six thousand, nine hundred fifty-seven".