7138842035247 has 40 divisors (see below), whose sum is σ = 11487108972416. Its totient is φ = 4392142792128.

The previous prime is 7138842035207. The next prime is 7138842035309. The reversal of 7138842035247 is 7425302488317.

It is a happy number.

7138842035247 is a `hidden beast` number, since 7 + 1 + 38 + 84 + 2 + 0 + 3 + 524 + 7 = 666.

It is not a de Polignac number, because 7138842035247 - 2⁷ = 7138842035119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7138842035193 and 7138842035202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138842035207) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3920433 + ... + 5444949.

Almost surely, 2^{7138842035247} is an apocalyptic number.

7138842035247 is a deficient number, since it is larger than the sum of its proper divisors (4348266937169).

7138842035247 is a wasteful number, since it uses less digits than its factorization.

7138842035247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528989 (or 1528980 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 7138842035247 in words is "seven trillion, one hundred thirty-eight billion, eight hundred forty-two million, thirty-five thousand, two hundred forty-seven".