7071685426551 has 4 divisors (see below), whose sum is σ = 9428913902072. Its totient is φ = 4714456951032.

The previous prime is 7071685426517. The next prime is 7071685426573. The reversal of 7071685426551 is 1556245861707.

It is a happy number.

7071685426551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7071685426551 - 2¹⁰ = 7071685425527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7071685426491 and 7071685426500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7071685426651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178614237756 + ... + 1178614237761.

It is an arithmetic number, because the mean of its divisors is an integer number (2357228475518).

Almost surely, 2^{7071685426551} is an apocalyptic number.

7071685426551 is a deficient number, since it is larger than the sum of its proper divisors (2357228475521).

7071685426551 is a wasteful number, since it uses less digits than its factorization.

7071685426551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357228475520.

The product of its (nonzero) digits is 14112000, while the sum is 57.

The spelling of 7071685426551 in words is "seven trillion, seventy-one billion, six hundred eighty-five million, four hundred twenty-six thousand, five hundred fifty-one".