31425132346 has 16 divisors (see below), whose sum is σ = 51775963200. Its totient is φ = 14238389088.

The previous prime is 31425132307. The next prime is 31425132373. The reversal of 31425132346 is 64323152413.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17976891 + ... + 17978638.

It is an arithmetic number, because the mean of its divisors is an integer number (3235997700).

Almost surely, 2^31425132346 is an apocalyptic number.

31425132346 is a deficient number, since it is larger than the sum of its proper divisors (20350830854).

31425132346 is a wasteful number, since it uses less digits than its factorization.

31425132346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35955573.

The product of its digits is 51840, while the sum is 34.

Adding to 31425132346 its reverse (64323152413), we get a palindrome (95748284759).

The spelling of 31425132346 in words is "thirty-one billion, four hundred twenty-five million, one hundred thirty-two thousand, three hundred forty-six".