31458593629 has 2 divisors, whose sum is σ = 31458593630. Its totient is φ = 31458593628.

The previous prime is 31458593609. The next prime is 31458593701. The reversal of 31458593629 is 92639585413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21199942404 + 10258651225 = 145602^2 + 101285^2 .

It is a cyclic number.

It is not a de Polignac number, because 31458593629 - 2¹¹ = 31458591581 is a prime.

It is a super-2 number, since 2×31458593629² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31458593629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31458593609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15729296814 + 15729296815.

It is an arithmetic number, because the mean of its divisors is an integer number (15729296815).

Almost surely, 2^31458593629 is an apocalyptic number.

It is an amenable number.

31458593629 is a deficient number, since it is larger than the sum of its proper divisors (1).

31458593629 is an equidigital number, since it uses as much as digits as its factorization.

31458593629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 55.

The spelling of 31458593629 in words is "thirty-one billion, four hundred fifty-eight million, five hundred ninety-three thousand, six hundred twenty-nine".