31464561827 has 2 divisors, whose sum is σ = 31464561828. Its totient is φ = 31464561826.

The previous prime is 31464561797. The next prime is 31464561833. The reversal of 31464561827 is 72816546413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31464561827 - 2¹⁴ = 31464545443 is a prime.

It is not a weakly prime, because it can be changed into another prime (31464461827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15732280913 + 15732280914.

It is an arithmetic number, because the mean of its divisors is an integer number (15732280914).

Almost surely, 2^31464561827 is an apocalyptic number.

31464561827 is a deficient number, since it is larger than the sum of its proper divisors (1).

31464561827 is an equidigital number, since it uses as much as digits as its factorization.

31464561827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The spelling of 31464561827 in words is "thirty-one billion, four hundred sixty-four million, five hundred sixty-one thousand, eight hundred twenty-seven".