31225489682 has 32 divisors (see below), whose sum is σ = 48049822080. Its totient is φ = 15214711680.

The previous prime is 31225489681. The next prime is 31225489693. The reversal of 31225489682 is 28698452213.

It is a super-2 number, since 2×31225489682² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31225489682.

It is not an unprimeable number, because it can be changed into a prime (31225489681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7381544 + ... + 7385772.

It is an arithmetic number, because the mean of its divisors is an integer number (1501556940).

Almost surely, 2^31225489682 is an apocalyptic number.

31225489682 is a deficient number, since it is larger than the sum of its proper divisors (16824332398).

31225489682 is a wasteful number, since it uses less digits than its factorization.

31225489682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898.

The product of its digits is 1658880, while the sum is 50.

The spelling of 31225489682 in words is "thirty-one billion, two hundred twenty-five million, four hundred eighty-nine thousand, six hundred eighty-two".