3112536720 has 40 divisors (see below), whose sum is σ = 9648864576. Its totient is φ = 830009728.

The previous prime is 3112536677. The next prime is 3112536751. The reversal of 3112536720 is 276352113.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6484212 + ... + 6484691.

Almost surely, 2^3112536720 is an apocalyptic number.

3112536720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3112536720 is an abundant number, since it is smaller than the sum of its proper divisors (6536327856).

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

3112536720 is a wasteful number, since it uses less digits than its factorization.

3112536720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968919 (or 12968913 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 3112536720 is about 55790.1131025919. The cubic root of 3112536720 is about 1460.0626607247.

Adding to 3112536720 its reverse (276352113), we get a palindrome (3388888833).

The spelling of 3112536720 in words is "three billion, one hundred twelve million, five hundred thirty-six thousand, seven hundred twenty".