428837238407 has 2 divisors, whose sum is σ = 428837238408. Its totient is φ = 428837238406.

The previous prime is 428837238343. The next prime is 428837238409. The reversal of 428837238407 is 704832738824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428837238407 - 2⁶ = 428837238343 is a prime.

Together with 428837238409, 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 (428837238409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214418619203 + 214418619204.

It is an arithmetic number, because the mean of its divisors is an integer number (214418619204).

Almost surely, 2^428837238407 is an apocalyptic number.

428837238407 is a deficient number, since it is larger than the sum of its proper divisors (1).

428837238407 is an equidigital number, since it uses as much as digits as its factorization.

428837238407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14450688, while the sum is 56.

The spelling of 428837238407 in words is "four hundred twenty-eight billion, eight hundred thirty-seven million, two hundred thirty-eight thousand, four hundred seven".