31446052819 has 2 divisors, whose sum is σ = 31446052820. Its totient is φ = 31446052818.

The previous prime is 31446052817. The next prime is 31446052823. The reversal of 31446052819 is 91825064413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31446052819 - 2¹ = 31446052817 is a prime.

It is a super-2 number, since 2×31446052819² (a number of 22 digits) contains 22 as substring.

Together with 31446052817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31446052817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15723026409 + 15723026410.

It is an arithmetic number, because the mean of its divisors is an integer number (15723026410).

Almost surely, 2^31446052819 is an apocalyptic number.

31446052819 is a deficient number, since it is larger than the sum of its proper divisors (1).

31446052819 is an equidigital number, since it uses as much as digits as its factorization.

31446052819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 31446052819 in words is "thirty-one billion, four hundred forty-six million, fifty-two thousand, eight hundred nineteen".