7140245516021 has 8 divisors (see below), whose sum is σ = 7151551380120. Its totient is φ = 7128946142208.

The previous prime is 7140245516011. The next prime is 7140245516081. The reversal of 7140245516021 is 1206155420417.

It can be written as a sum of positive squares in 4 ways, for example, as 3341200131025 + 3799045384996 = 1827895^2 + 1949114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7140245516021 - 2⁶ = 7140245515957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140245516011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581825 + ... + 3823481.

It is an arithmetic number, because the mean of its divisors is an integer number (893943922515).

Almost surely, 2^{7140245516021} is an apocalyptic number.

It is an amenable number.

7140245516021 is a deficient number, since it is larger than the sum of its proper divisors (11305864099).

7140245516021 is a wasteful number, since it uses less digits than its factorization.

7140245516021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245143.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 7140245516021 in words is "seven trillion, one hundred forty billion, two hundred forty-five million, five hundred sixteen thousand, twenty-one".