21474048898 has 16 divisors (see below), whose sum is σ = 32990196096. Its totient is φ = 10477771920.

The previous prime is 21474048857. The next prime is 21474048949. The reversal of 21474048898 is 89884047412.

It is a super-2 number, since 2×21474048898² (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 7 ways as a sum of consecutive naturals, for example, 18333 + ... + 208048.

It is an arithmetic number, because the mean of its divisors is an integer number (2061887256).

Almost surely, 2^21474048898 is an apocalyptic number.

21474048898 is a deficient number, since it is larger than the sum of its proper divisors (11516147198).

21474048898 is a wasteful number, since it uses less digits than its factorization.

21474048898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227529.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 21474048898 in words is "twenty-one billion, four hundred seventy-four million, forty-eight thousand, eight hundred ninety-eight".