20435142898 has 8 divisors (see below), whose sum is σ = 31641511680. Its totient is φ = 9887972340.

The previous prime is 20435142863. The next prime is 20435142943. The reversal of 20435142898 is 89824153402.

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

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, 164799478 + ... + 164799601.

It is an arithmetic number, because the mean of its divisors is an integer number (3955188960).

Almost surely, 2^20435142898 is an apocalyptic number.

20435142898 is a deficient number, since it is larger than the sum of its proper divisors (11206368782).

20435142898 is a wasteful number, since it uses less digits than its factorization.

20435142898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329599112.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 20435142898 in words is "twenty billion, four hundred thirty-five million, one hundred forty-two thousand, eight hundred ninety-eight".