20547443462 has 32 divisors (see below), whose sum is σ = 37969784832. Its totient is φ = 8120935584.

The previous prime is 20547443407. The next prime is 20547443531. The reversal of 20547443462 is 26434474502.

It is a congruent number.

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, 140363 + ... + 246569.

It is an arithmetic number, because the mean of its divisors is an integer number (1186555776).

Almost surely, 2^20547443462 is an apocalyptic number.

20547443462 is a deficient number, since it is larger than the sum of its proper divisors (17422341370).

20547443462 is a wasteful number, since it uses less digits than its factorization.

20547443462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107292.

The product of its (nonzero) digits is 645120, while the sum is 41.

The spelling of 20547443462 in words is "twenty billion, five hundred forty-seven million, four hundred forty-three thousand, four hundred sixty-two".