628148211631 has 2 divisors, whose sum is σ = 628148211632. Its totient is φ = 628148211630.

The previous prime is 628148211601. The next prime is 628148211637. The reversal of 628148211631 is 136112841826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628148211631 - 2¹³ = 628148203439 is a prime.

It is a super-2 number, since 2×628148211631² (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 (628148211637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314074105815 + 314074105816.

It is an arithmetic number, because the mean of its divisors is an integer number (314074105816).

Almost surely, 2^628148211631 is an apocalyptic number.

628148211631 is a deficient number, since it is larger than the sum of its proper divisors (1).

628148211631 is an equidigital number, since it uses as much as digits as its factorization.

628148211631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The spelling of 628148211631 in words is "six hundred twenty-eight billion, one hundred forty-eight million, two hundred eleven thousand, six hundred thirty-one".