26061951558 has 32 divisors (see below), whose sum is σ = 55200414816. Its totient is φ = 8174757888.

The previous prime is 26061951547. The next prime is 26061951563. The reversal of 26061951558 is 85515916062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598410 + ... + 640482.

It is an arithmetic number, because the mean of its divisors is an integer number (1725012963).

Almost surely, 2^26061951558 is an apocalyptic number.

26061951558 is an abundant number, since it is smaller than the sum of its proper divisors (29138463258).

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

26061951558 is a wasteful number, since it uses less digits than its factorization.

26061951558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48168.

The product of its (nonzero) digits is 648000, while the sum is 48.

The spelling of 26061951558 in words is "twenty-six billion, sixty-one million, nine hundred fifty-one thousand, five hundred fifty-eight".