20892100739 has 2 divisors, whose sum is σ = 20892100740. Its totient is φ = 20892100738.

The previous prime is 20892100667. The next prime is 20892100759. The reversal of 20892100739 is 93700129802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20892100739 - 2⁸ = 20892100483 is a prime.

It is a super-2 number, since 2×20892100739² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20892100696 and 20892100705.

It is not a weakly prime, because it can be changed into another prime (20892100759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10446050369 + 10446050370.

It is an arithmetic number, because the mean of its divisors is an integer number (10446050370).

Almost surely, 2^20892100739 is an apocalyptic number.

20892100739 is a deficient number, since it is larger than the sum of its proper divisors (1).

20892100739 is an equidigital number, since it uses as much as digits as its factorization.

20892100739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 20892100739 in words is "twenty billion, eight hundred ninety-two million, one hundred thousand, seven hundred thirty-nine".