31463424457 has 4 divisors (see below), whose sum is σ = 31463853460. Its totient is φ = 31462995456.

The previous prime is 31463424431. The next prime is 31463424467. The reversal of 31463424457 is 75442436413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1528888201 + 29934536256 = 39101^2 + 173016^2 .

It is a cyclic number.

It is not a de Polignac number, because 31463424457 - 2⁷ = 31463424329 is a prime.

It is a super-2 number, since 2×31463424457² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31463424467) 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 in 3 ways as a sum of consecutive naturals, for example, 73668 + ... + 261445.

It is an arithmetic number, because the mean of its divisors is an integer number (7865963365).

Almost surely, 2^31463424457 is an apocalyptic number.

It is an amenable number.

31463424457 is a deficient number, since it is larger than the sum of its proper divisors (429003).

31463424457 is an equidigital number, since it uses as much as digits as its factorization.

31463424457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429002.

The product of its digits is 967680, while the sum is 43.

The spelling of 31463424457 in words is "thirty-one billion, four hundred sixty-three million, four hundred twenty-four thousand, four hundred fifty-seven".