20067452731 has 8 divisors (see below), whose sum is σ = 20324376000. Its totient is φ = 19810602240.

The previous prime is 20067452707. The next prime is 20067452767. The reversal of 20067452731 is 13725476002.

It is a happy number.

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-20067452731 is a prime.

It is a super-2 number, since 2×20067452731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20067452771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733995 + ... + 760843.

It is an arithmetic number, because the mean of its divisors is an integer number (2540547000).

Almost surely, 2^20067452731 is an apocalyptic number.

20067452731 is a deficient number, since it is larger than the sum of its proper divisors (256923269).

20067452731 is an equidigital number, since it uses as much as digits as its factorization.

20067452731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36389.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 20067452731 in words is "twenty billion, sixty-seven million, four hundred fifty-two thousand, seven hundred thirty-one".