20146679741 has 2 divisors, whose sum is σ = 20146679742. Its totient is φ = 20146679740.

The previous prime is 20146679699. The next prime is 20146679743. The reversal of 20146679741 is 14797664102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16592016100 + 3554663641 = 128810^2 + 59621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20146679741 is a prime.

Together with 20146679743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146679743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073339870 + 10073339871.

It is an arithmetic number, because the mean of its divisors is an integer number (10073339871).

Almost surely, 2^20146679741 is an apocalyptic number.

It is an amenable number.

20146679741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146679741 is an equidigital number, since it uses as much as digits as its factorization.

20146679741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 20146679741 in words is "twenty billion, one hundred forty-six million, six hundred seventy-nine thousand, seven hundred forty-one".