26210431252 has 6 divisors (see below), whose sum is σ = 45868254698. Its totient is φ = 13105215624.

The previous prime is 26210431249. The next prime is 26210431301. The reversal of 26210431252 is 25213401262.

It can be written as a sum of positive squares in only one way, i.e., 26090002576 + 120428676 = 161524^2 + 10974^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26210431252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276303903 + ... + 3276303910.

Almost surely, 2^26210431252 is an apocalyptic number.

It is an amenable number.

26210431252 is a deficient number, since it is larger than the sum of its proper divisors (19657823446).

26210431252 is a wasteful number, since it uses less digits than its factorization.

26210431252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552607817 (or 6552607815 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 26210431252 in words is "twenty-six billion, two hundred ten million, four hundred thirty-one thousand, two hundred fifty-two".