31350486552 has 384 divisors, whose sum is σ = 105341472000. Its totient is φ = 7666928640.

The previous prime is 31350486547. The next prime is 31350486581. The reversal of 31350486552 is 25568405313.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56284258 + ... + 56284814.

It is an arithmetic number, because the mean of its divisors is an integer number (274326750).

Almost surely, 2^31350486552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31350486552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52670736000).

31350486552 is an abundant number, since it is smaller than the sum of its proper divisors (73990985448).

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

31350486552 is a wasteful number, since it uses less digits than its factorization.

31350486552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 31350486552 in words is "thirty-one billion, three hundred fifty million, four hundred eighty-six thousand, five hundred fifty-two".