20001993467 has 8 divisors (see below), whose sum is σ = 21262962672. Its totient is φ = 18750400000.

The previous prime is 20001993449. The next prime is 20001993491. The reversal of 20001993467 is 76439910002.

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-20001993467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001996467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339534 + ... + 2348067.

It is an arithmetic number, because the mean of its divisors is an integer number (2657870334).

Almost surely, 2^20001993467 is an apocalyptic number.

20001993467 is a deficient number, since it is larger than the sum of its proper divisors (1260969205).

20001993467 is a wasteful number, since it uses less digits than its factorization.

20001993467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687869.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 20001993467 in words is "twenty billion, one million, nine hundred ninety-three thousand, four hundred sixty-seven".