7561914444 has 144 divisors (see below), whose sum is σ = 22837534720. Its totient is φ = 2064216960.

The previous prime is 7561914403. The next prime is 7561914469. The reversal of 7561914444 is 4444191657.

7561914444 is a `hidden beast` number, since 7 + 561 + 9 + 1 + 44 + 44 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7561914444.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 611022 + ... + 623274.

Almost surely, 2^7561914444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7561914444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11418767360).

7561914444 is an abundant number, since it is smaller than the sum of its proper divisors (15275620276).

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

7561914444 is a wasteful number, since it uses less digits than its factorization.

7561914444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380 (or 12375 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 7561914444 is about 86959.2688791712. The cubic root of 7561914444 is about 1962.8054407359.

The spelling of 7561914444 in words is "seven billion, five hundred sixty-one million, nine hundred fourteen thousand, four hundred forty-four".