21088076798 has 8 divisors (see below), whose sum is σ = 32722877880. Its totient is φ = 10180450840.

The previous prime is 21088076761. The next prime is 21088076843. The reversal of 21088076798 is 89767088012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181793708 + ... + 181793823.

It is an arithmetic number, because the mean of its divisors is an integer number (4090359735).

Almost surely, 2^21088076798 is an apocalyptic number.

21088076798 is a deficient number, since it is larger than the sum of its proper divisors (11634801082).

21088076798 is a wasteful number, since it uses less digits than its factorization.

21088076798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363587562.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 21088076798 in words is "twenty-one billion, eighty-eight million, seventy-six thousand, seven hundred ninety-eight".