31452749652 has 48 divisors (see below), whose sum is σ = 73716572160. Its totient is φ = 10437614688.

The previous prime is 31452749651. The next prime is 31452749659. The reversal of 31452749652 is 25694725413.

It is a super-2 number, since 2×31452749652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31452749651) 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, 8023749 + ... + 8027667.

It is an arithmetic number, because the mean of its divisors is an integer number (1535761920).

Almost surely, 2^31452749652 is an apocalyptic number.

It is an amenable number.

31452749652 is an abundant number, since it is smaller than the sum of its proper divisors (42263822508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31452749652 is a wasteful number, since it uses less digits than its factorization.

31452749652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732 (or 6730 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 31452749652 in words is "thirty-one billion, four hundred fifty-two million, seven hundred forty-nine thousand, six hundred fifty-two".