26553091632990 has 64 divisors (see below), whose sum is σ = 68630515011072. Its totient is φ = 6536051740800.

The previous prime is 26553091632989. The next prime is 26553091633021. The reversal of 26553091632990 is 9923619035562.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28966785 + ... + 29869395.

It is an arithmetic number, because the mean of its divisors is an integer number (1072351797048).

Almost surely, 2^{26553091632990} is an apocalyptic number.

26553091632990 is an abundant number, since it is smaller than the sum of its proper divisors (42077423378082).

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

26553091632990 is a wasteful number, since it uses less digits than its factorization.

26553091632990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978065.

The product of its (nonzero) digits is 23619600, while the sum is 60.

The spelling of 26553091632990 in words is "twenty-six trillion, five hundred fifty-three billion, ninety-one million, six hundred thirty-two thousand, nine hundred ninety".