7561616312 has 8 divisors (see below), whose sum is σ = 14178030600. Its totient is φ = 3780808152.

The previous prime is 7561616311. The next prime is 7561616327. The reversal of 7561616312 is 2136161657.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7561616311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472601012 + ... + 472601027.

It is an arithmetic number, because the mean of its divisors is an integer number (1772253825).

Almost surely, 2^7561616312 is an apocalyptic number.

It is an amenable number.

7561616312 is a deficient number, since it is larger than the sum of its proper divisors (6616414288).

7561616312 is a wasteful number, since it uses less digits than its factorization.

7561616312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945202045 (or 945202041 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 7561616312 is about 86957.5546574304. The cubic root of 7561616312 is about 1962.7796455573.

Adding to 7561616312 its reverse (2136161657), we get a palindrome (9697777969).

The spelling of 7561616312 in words is "seven billion, five hundred sixty-one million, six hundred sixteen thousand, three hundred twelve".