26538152949 has 48 divisors (see below), whose sum is σ = 49083365760. Its totient is φ = 13413444480.

The previous prime is 26538152939. The next prime is 26538152987. The reversal of 26538152949 is 94925183562.

26538152949 is a `hidden beast` number, since 2 + 6 + 538 + 15 + 2 + 94 + 9 = 666.

It is not a de Polignac number, because 26538152949 - 2⁴ = 26538152933 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26538152895 and 26538152904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26538152939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 491854 + ... + 543135.

It is an arithmetic number, because the mean of its divisors is an integer number (1022570120).

Almost surely, 2^26538152949 is an apocalyptic number.

It is an amenable number.

26538152949 is a deficient number, since it is larger than the sum of its proper divisors (22545212811).

26538152949 is a wasteful number, since it uses less digits than its factorization.

26538152949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035050 (or 1035047 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 26538152949 in words is "twenty-six billion, five hundred thirty-eight million, one hundred fifty-two thousand, nine hundred forty-nine".