26319252990 has 16 divisors (see below), whose sum is σ = 63166207248. Its totient is φ = 7018467456.

The previous prime is 26319252983. The next prime is 26319253003. The reversal of 26319252990 is 9925291362.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438654187 + ... + 438654246.

It is an arithmetic number, because the mean of its divisors is an integer number (3947887953).

Almost surely, 2^26319252990 is an apocalyptic number.

26319252990 is an abundant number, since it is smaller than the sum of its proper divisors (36846954258).

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

26319252990 is a wasteful number, since it uses less digits than its factorization.

26319252990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877308443.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 26319252990 in words is "twenty-six billion, three hundred nineteen million, two hundred fifty-two thousand, nine hundred ninety".