20750117407 has 8 divisors (see below), whose sum is σ = 21108538512. Its totient is φ = 20394696000.

The previous prime is 20750117389. The next prime is 20750117411. The reversal of 20750117407 is 70471105702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20750117407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20750217407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735969 + ... + 763642.

It is an arithmetic number, because the mean of its divisors is an integer number (2638567314).

Almost surely, 2^20750117407 is an apocalyptic number.

20750117407 is a deficient number, since it is larger than the sum of its proper divisors (358421105).

20750117407 is a wasteful number, since it uses less digits than its factorization.

20750117407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499849.

The product of its (nonzero) digits is 13720, while the sum is 34.

The spelling of 20750117407 in words is "twenty billion, seven hundred fifty million, one hundred seventeen thousand, four hundred seven".