20974484486 has 8 divisors (see below), whose sum is σ = 31465303104. Its totient is φ = 10486050120.

The previous prime is 20974484449. The next prime is 20974484501. The reversal of 20974484486 is 68448447902.

It is a happy number.

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, 573905 + ... + 609356.

It is an arithmetic number, because the mean of its divisors is an integer number (3933162888).

Almost surely, 2^20974484486 is an apocalyptic number.

20974484486 is a deficient number, since it is larger than the sum of its proper divisors (10490818618).

20974484486 is a wasteful number, since it uses less digits than its factorization.

20974484486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192126.

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 20974484486 in words is "twenty billion, nine hundred seventy-four million, four hundred eighty-four thousand, four hundred eighty-six".