7550791440 has 160 divisors (see below), whose sum is σ = 24574427136. Its totient is φ = 1914232320.

The previous prime is 7550791433. The next prime is 7550791471. The reversal of 7550791440 is 441970557.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7550791392 and 7550791401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 917745 + ... + 925935.

Almost surely, 2^7550791440 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 7550791440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12287213568).

7550791440 is an abundant number, since it is smaller than the sum of its proper divisors (17023635696).

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

7550791440 is a wasteful number, since it uses less digits than its factorization.

7550791440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8397 (or 8391 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 7550791440 is about 86895.2900910055. The cubic root of 7550791440 is about 1961.8425890561.

The spelling of 7550791440 in words is "seven billion, five hundred fifty million, seven hundred ninety-one thousand, four hundred forty".