7800957444 has 96 divisors (see below), whose sum is σ = 21014210560. Its totient is φ = 2206268928.

The previous prime is 7800957443. The next prime is 7800957469. The reversal of 7800957444 is 4447590087.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7800957393 and 7800957402.

It is not an unprimeable number, because it can be changed into a prime (7800957443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5054937 + ... + 5056479.

Almost surely, 2^7800957444 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 7800957444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10507105280).

7800957444 is an abundant number, since it is smaller than the sum of its proper divisors (13213253116).

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

7800957444 is a wasteful number, since it uses less digits than its factorization.

7800957444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129 (or 2127 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 7800957444 is about 88323.0289562128. The cubic root of 7800957444 is about 1983.2736244781.

The spelling of 7800957444 in words is "seven billion, eight hundred million, nine hundred fifty-seven thousand, four hundred forty-four".