31682269890 has 48 divisors (see below), whose sum is σ = 84383031096. Its totient is φ = 8242540800.

The previous prime is 31682269867. The next prime is 31682269901. The reversal of 31682269890 is 9896228613.

It can be written as a sum of positive squares in 4 ways, for example, as 23100656121 + 8581613769 = 151989^2 + 92637^2 .

It is a super-3 number, since 3×31682269890³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4289301 + ... + 4296680.

Almost surely, 2^31682269890 is an apocalyptic number.

31682269890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31682269890 is an abundant number, since it is smaller than the sum of its proper divisors (52700761206).

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

31682269890 is a wasteful number, since it uses less digits than its factorization.

31682269890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586035 (or 8586032 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 31682269890 in words is "thirty-one billion, six hundred eighty-two million, two hundred sixty-nine thousand, eight hundred ninety".