20067951939 has 8 divisors (see below), whose sum is σ = 30579736320. Its totient is φ = 11467401096.

The previous prime is 20067951929. The next prime is 20067951983. The reversal of 20067951939 is 93915976002.

It is a happy number.

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

It is not a de Polignac number, because 20067951939 - 2⁵ = 20067951907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20067951891 and 20067951900.

It is not an unprimeable number, because it can be changed into a prime (20067951929) 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, 477808359 + ... + 477808400.

It is an arithmetic number, because the mean of its divisors is an integer number (3822467040).

Almost surely, 2^20067951939 is an apocalyptic number.

20067951939 is a deficient number, since it is larger than the sum of its proper divisors (10511784381).

20067951939 is an equidigital number, since it uses as much as digits as its factorization.

20067951939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955616769.

The product of its (nonzero) digits is 918540, while the sum is 51.

The spelling of 20067951939 in words is "twenty billion, sixty-seven million, nine hundred fifty-one thousand, nine hundred thirty-nine".