7082021042 has 4 divisors (see below), whose sum is σ = 10623031566. Its totient is φ = 3541010520.

The previous prime is 7082021033. The next prime is 7082021047. The reversal of 7082021042 is 2401202807.

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., 6850707361 + 231313681 = 82769^2 + 15209^2 .

It is a super-3 number, since 3×7082021042³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7082021047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770505259 + ... + 1770505262.

Almost surely, 2^7082021042 is an apocalyptic number.

7082021042 is a deficient number, since it is larger than the sum of its proper divisors (3541010524).

7082021042 is a wasteful number, since it uses less digits than its factorization.

7082021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541010523.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 7082021042 is about 84154.7446196588. The cubic root of 7082021042 is about 1920.3736470795.

Adding to 7082021042 its reverse (2401202807), we get a palindrome (9483223849).

The spelling of 7082021042 in words is "seven billion, eighty-two million, twenty-one thousand, forty-two".