298648650138 has 32 divisors (see below), whose sum is σ = 614425754880. Its totient is φ = 96715127040.

The previous prime is 298648650121. The next prime is 298648650149. The reversal of 298648650138 is 831056846892.

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, 2480995 + ... + 2598582.

It is an arithmetic number, because the mean of its divisors is an integer number (19200804840).

Almost surely, 2^298648650138 is an apocalyptic number.

298648650138 is an abundant number, since it is smaller than the sum of its proper divisors (315777104742).

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

298648650138 is a wasteful number, since it uses less digits than its factorization.

298648650138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079862.

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 298648650138 in words is "two hundred ninety-eight billion, six hundred forty-eight million, six hundred fifty thousand, one hundred thirty-eight".