7142070040538 has 4 divisors (see below), whose sum is σ = 10713105060810. Its totient is φ = 3571035020268.

The previous prime is 7142070040531. The next prime is 7142070040541. The reversal of 7142070040538 is 8350400702417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5644439894809 + 1497630145729 = 2375803^2 + 1223777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7142070040495 and 7142070040504.

It is not an unprimeable number, because it can be changed into a prime (7142070040531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785517510133 + ... + 1785517510136.

Almost surely, 2^{7142070040538} is an apocalyptic number.

7142070040538 is a deficient number, since it is larger than the sum of its proper divisors (3571035020272).

7142070040538 is a wasteful number, since it uses less digits than its factorization.

7142070040538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571035020271.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 7142070040538 in words is "seven trillion, one hundred forty-two billion, seventy million, forty thousand, five hundred thirty-eight".