21875402098 has 8 divisors (see below), whose sum is σ = 35796112560. Its totient is φ = 9943364580.

The previous prime is 21875402053. The next prime is 21875402141. The reversal of 21875402098 is 89020457812.

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

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, 497168208 + ... + 497168251.

It is an arithmetic number, because the mean of its divisors is an integer number (4474514070).

Almost surely, 2^21875402098 is an apocalyptic number.

21875402098 is a deficient number, since it is larger than the sum of its proper divisors (13920710462).

21875402098 is a wasteful number, since it uses less digits than its factorization.

21875402098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994336472.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 21875402098 in words is "twenty-one billion, eight hundred seventy-five million, four hundred two thousand, ninety-eight".