20126047546 has 16 divisors (see below), whose sum is σ = 33009959808. Its totient is φ = 9126973600.

The previous prime is 20126047537. The next prime is 20126047549. The reversal of 20126047546 is 64574062102.

It is not an unprimeable number, because it can be changed into a prime (20126047549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051795 + ... + 1070758.

It is an arithmetic number, because the mean of its divisors is an integer number (2063122488).

Almost surely, 2^20126047546 is an apocalyptic number.

20126047546 is a deficient number, since it is larger than the sum of its proper divisors (12883912262).

20126047546 is a wasteful number, since it uses less digits than its factorization.

20126047546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122997.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 20126047546 in words is "twenty billion, one hundred twenty-six million, forty-seven thousand, five hundred forty-six".