7021474415681 has 4 divisors (see below), whose sum is σ = 7659790271664. Its totient is φ = 6383158559700.

The previous prime is 7021474415677. The next prime is 7021474415687. The reversal of 7021474415681 is 1865144741207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7021474415681 - 2² = 7021474415677 is a prime.

It is a super-2 number, since 2×7021474415681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7021474415687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319157927975 + ... + 319157927996.

It is an arithmetic number, because the mean of its divisors is an integer number (1914947567916).

Almost surely, 2^{7021474415681} is an apocalyptic number.

It is an amenable number.

7021474415681 is a deficient number, since it is larger than the sum of its proper divisors (638315855983).

7021474415681 is a wasteful number, since it uses less digits than its factorization.

7021474415681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638315855982.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 7021474415681 in words is "seven trillion, twenty-one billion, four hundred seventy-four million, four hundred fifteen thousand, six hundred eighty-one".