31528069044 has 48 divisors (see below), whose sum is σ = 75608214528. Its totient is φ = 10219694688.

The previous prime is 31528069021. The next prime is 31528069091. The reversal of 31528069044 is 44096082513.

It is a junction number, because it is equal to n+sod(n) for n = 31528068987 and 31528069005.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 17452 + ... + 251715.

It is an arithmetic number, because the mean of its divisors is an integer number (1575171136).

Almost surely, 2^31528069044 is an apocalyptic number.

It is an amenable number.

31528069044 is an abundant number, since it is smaller than the sum of its proper divisors (44080145484).

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

31528069044 is a wasteful number, since it uses less digits than its factorization.

31528069044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269444 (or 269442 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 31528069044 in words is "thirty-one billion, five hundred twenty-eight million, sixty-nine thousand, forty-four".