428603313631 has 2 divisors, whose sum is σ = 428603313632. Its totient is φ = 428603313630.

The previous prime is 428603313583. The next prime is 428603313643. The reversal of 428603313631 is 136313306824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428603313631 - 2¹³ = 428603305439 is a prime.

It is a super-2 number, since 2×428603313631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428603613631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214301656815 + 214301656816.

It is an arithmetic number, because the mean of its divisors is an integer number (214301656816).

Almost surely, 2^428603313631 is an apocalyptic number.

428603313631 is a deficient number, since it is larger than the sum of its proper divisors (1).

428603313631 is an equidigital number, since it uses as much as digits as its factorization.

428603313631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 428603313631 in words is "four hundred twenty-eight billion, six hundred three million, three hundred thirteen thousand, six hundred thirty-one".