7430138644850 has 48 divisors (see below), whose sum is σ = 13844510654280. Its totient is φ = 2966801472000.

The previous prime is 7430138644837. The next prime is 7430138644879. The reversal of 7430138644850 is 584468310347.

It can be written as a sum of positive squares in 12 ways, for example, as 11144813761 + 7418993831089 = 105569^2 + 2723783^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7430138644792 and 7430138644801.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64777550 + ... + 64892150.

Almost surely, 2^{7430138644850} is an apocalyptic number.

7430138644850 is a deficient number, since it is larger than the sum of its proper divisors (6414372009430).

7430138644850 is a wasteful number, since it uses less digits than its factorization.

7430138644850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116895 (or 116890 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 7430138644850 in words is "seven trillion, four hundred thirty billion, one hundred thirty-eight million, six hundred forty-four thousand, eight hundred fifty".