7531880616 has 48 divisors (see below), whose sum is σ = 21967987860. Its totient is φ = 2317501440.

The previous prime is 7531880599. The next prime is 7531880623. The reversal of 7531880616 is 6160881357.

It can be written as a sum of positive squares in 2 ways, for example, as 5747156100 + 1784724516 = 75810^2 + 42246^2 .

It is a super-2 number, since 2×7531880616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4022505 + ... + 4024376.

Almost surely, 2^7531880616 is an apocalyptic number.

It is an amenable number.

7531880616 is an abundant number, since it is smaller than the sum of its proper divisors (14436107244).

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

7531880616 is a wasteful number, since it uses less digits than its factorization.

7531880616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046906 (or 8046899 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 7531880616 is about 86786.4080141585. The cubic root of 7531880616 is about 1960.2034198146.

The spelling of 7531880616 in words is "seven billion, five hundred thirty-one million, eight hundred eighty thousand, six hundred sixteen".