20391210298 has 8 divisors (see below), whose sum is σ = 30641145408. Its totient is φ = 10177495164.

The previous prime is 20391210289. The next prime is 20391210317. The reversal of 20391210298 is 89201219302.

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

It is a super-2 number, since 2×20391210298² (a number of 21 digits) contains 22 as substring.

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, 9053586 + ... + 9055837.

It is an arithmetic number, because the mean of its divisors is an integer number (3830143176).

Almost surely, 2^20391210298 is an apocalyptic number.

20391210298 is a deficient number, since it is larger than the sum of its proper divisors (10249935110).

20391210298 is a wasteful number, since it uses less digits than its factorization.

20391210298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18109988.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 20391210298 in words is "twenty billion, three hundred ninety-one million, two hundred ten thousand, two hundred ninety-eight".