20917414042 has 8 divisors (see below), whose sum is σ = 35858424096. Its totient is φ = 8964606012.

The previous prime is 20917414033. The next prime is 20917414073. The reversal of 20917414042 is 24041471902.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20917413989 and 20917414007.

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, 747050488 + ... + 747050515.

It is an arithmetic number, because the mean of its divisors is an integer number (4482303012).

Almost surely, 2^20917414042 is an apocalyptic number.

20917414042 is a deficient number, since it is larger than the sum of its proper divisors (14941010054).

20917414042 is a wasteful number, since it uses less digits than its factorization.

20917414042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494101012.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 20917414042 its reverse (24041471902), we get a palindrome (44958885944).

The spelling of 20917414042 in words is "twenty billion, nine hundred seventeen million, four hundred fourteen thousand, forty-two".