31453489279 has 2 divisors, whose sum is σ = 31453489280. Its totient is φ = 31453489278.

The previous prime is 31453489273. The next prime is 31453489303. The reversal of 31453489279 is 97298435413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31453489279 - 2¹⁷ = 31453358207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31453489273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15726744639 + 15726744640.

It is an arithmetic number, because the mean of its divisors is an integer number (15726744640).

Almost surely, 2^31453489279 is an apocalyptic number.

31453489279 is a deficient number, since it is larger than the sum of its proper divisors (1).

31453489279 is an equidigital number, since it uses as much as digits as its factorization.

31453489279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 55.

The spelling of 31453489279 in words is "thirty-one billion, four hundred fifty-three million, four hundred eighty-nine thousand, two hundred seventy-nine".