31453402450 has 24 divisors (see below), whose sum is σ = 58585909860. Its totient is φ = 12563601600.

The previous prime is 31453402447. The next prime is 31453402459. The reversal of 31453402450 is 5420435413.

It can be written as a sum of positive squares in 6 ways, for example, as 403085929 + 31050316521 = 20077^2 + 176211^2 .

It is not an unprimeable number, because it can be changed into a prime (31453402459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408181 + ... + 479080.

Almost surely, 2^31453402450 is an apocalyptic number.

31453402450 is a deficient number, since it is larger than the sum of its proper divisors (27132507410).

31453402450 is a wasteful number, since it uses less digits than its factorization.

31453402450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887982 (or 887977 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 31453402450 its reverse (5420435413), we get a palindrome (36873837863).

The spelling of 31453402450 in words is "thirty-one billion, four hundred fifty-three million, four hundred two thousand, four hundred fifty".