7025356542681 has 6 divisors (see below), whose sum is σ = 10147737228330. Its totient is φ = 4683571028448.

The previous prime is 7025356542679. The next prime is 7025356542683. The reversal of 7025356542681 is 1862456535207.

7025356542681 is a `hidden beast` number, since 7 + 0 + 2 + 5 + 35 + 6 + 542 + 68 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (7025356542679) and next prime (7025356542683).

It can be written as a sum of positive squares in only one way, i.e., 6799264851600 + 226091691081 = 2607540^2 + 475491^2 .

It is not a de Polignac number, because 7025356542681 - 2¹ = 7025356542679 is a prime.

It is a super-2 number, since 2×7025356542681² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7025356542683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 390297585696 + ... + 390297585713.

It is an arithmetic number, because the mean of its divisors is an integer number (1691289538055).

Almost surely, 2^{7025356542681} is an apocalyptic number.

It is an amenable number.

7025356542681 is a deficient number, since it is larger than the sum of its proper divisors (3122380685649).

7025356542681 is a wasteful number, since it uses less digits than its factorization.

7025356542681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780595171415 (or 780595171412 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 7025356542681 in words is "seven trillion, twenty-five billion, three hundred fifty-six million, five hundred forty-two thousand, six hundred eighty-one".