20493046975582 has 32 divisors (see below), whose sum is σ = 31193921264832. Its totient is φ = 10096150977024.

The previous prime is 20493046975579. The next prime is 20493046975589. The reversal of 20493046975582 is 28557964039402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493046975589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547235983 + ... + 547273429.

It is an arithmetic number, because the mean of its divisors is an integer number (974810039526).

Almost surely, 2^{20493046975582} is an apocalyptic number.

20493046975582 is a deficient number, since it is larger than the sum of its proper divisors (10700874289250).

20493046975582 is a wasteful number, since it uses less digits than its factorization.

20493046975582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51732.

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 20493046975582 in words is "twenty trillion, four hundred ninety-three billion, forty-six million, nine hundred seventy-five thousand, five hundred eighty-two".