20573229407 has 2 divisors, whose sum is σ = 20573229408. Its totient is φ = 20573229406.

The previous prime is 20573229379. The next prime is 20573229433. The reversal of 20573229407 is 70492237502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20573229407 - 2⁶ = 20573229343 is a prime.

It is a super-3 number, since 3×20573229407³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20573229707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10286614703 + 10286614704.

It is an arithmetic number, because the mean of its divisors is an integer number (10286614704).

Almost surely, 2^20573229407 is an apocalyptic number.

20573229407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20573229407 is an equidigital number, since it uses as much as digits as its factorization.

20573229407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 20573229407 in words is "twenty billion, five hundred seventy-three million, two hundred twenty-nine thousand, four hundred seven".