26161245258 has 32 divisors (see below), whose sum is σ = 55255205376. Its totient is φ = 8240765808.

The previous prime is 26161245251. The next prime is 26161245259. The reversal of 26161245258 is 85254216162.

It is not an unprimeable number, because it can be changed into a prime (26161245251) 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 in 15 ways as a sum of consecutive naturals, for example, 1130560 + ... + 1153467.

It is an arithmetic number, because the mean of its divisors is an integer number (1726725168).

Almost surely, 2^26161245258 is an apocalyptic number.

26161245258 is an abundant number, since it is smaller than the sum of its proper divisors (29093960118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26161245258 is a wasteful number, since it uses less digits than its factorization.

26161245258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284138.

The product of its digits is 230400, while the sum is 42.

The spelling of 26161245258 in words is "twenty-six billion, one hundred sixty-one million, two hundred forty-five thousand, two hundred fifty-eight".