20280512042 has 8 divisors (see below), whose sum is σ = 34766592096. Its totient is φ = 8691648012.

The previous prime is 20280512033. The next prime is 20280512059. The reversal of 20280512042 is 24021508202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20280512042² (a number of 21 digits) contains 22 as substring.

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, 724303988 + ... + 724304015.

It is an arithmetic number, because the mean of its divisors is an integer number (4345824012).

Almost surely, 2^20280512042 is an apocalyptic number.

20280512042 is a deficient number, since it is larger than the sum of its proper divisors (14486080054).

20280512042 is a wasteful number, since it uses less digits than its factorization.

20280512042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448608012.

The product of its (nonzero) digits is 2560, while the sum is 26.

The spelling of 20280512042 in words is "twenty billion, two hundred eighty million, five hundred twelve thousand, forty-two".