26951379550 has 12 divisors (see below), whose sum is σ = 50129566056. Its totient is φ = 10780551800.

The previous prime is 26951379547. The next prime is 26951379557. The reversal of 26951379550 is 5597315962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26951379557) 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 5 ways as a sum of consecutive naturals, for example, 269513746 + ... + 269513845.

It is an arithmetic number, because the mean of its divisors is an integer number (4177463838).

Almost surely, 2^26951379550 is an apocalyptic number.

26951379550 is a deficient number, since it is larger than the sum of its proper divisors (23178186506).

26951379550 is a wasteful number, since it uses less digits than its factorization.

26951379550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539027603 (or 539027598 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 52.

The spelling of 26951379550 in words is "twenty-six billion, nine hundred fifty-one million, three hundred seventy-nine thousand, five hundred fifty".