20433857124 has 12 divisors (see below), whose sum is σ = 47678999984. Its totient is φ = 6811285704.

The previous prime is 20433857077. The next prime is 20433857131. The reversal of 20433857124 is 42175833402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 851410702 + ... + 851410725.

Almost surely, 2^20433857124 is an apocalyptic number.

It is an amenable number.

20433857124 is an abundant number, since it is smaller than the sum of its proper divisors (27245142860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20433857124 is a wasteful number, since it uses less digits than its factorization.

20433857124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702821434 (or 1702821432 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 20433857124 in words is "twenty billion, four hundred thirty-three million, eight hundred fifty-seven thousand, one hundred twenty-four".