681067532615 has 8 divisors (see below), whose sum is σ = 817425647808. Its totient is φ = 544757620320.

The previous prime is 681067532611. The next prime is 681067532689. The reversal of 681067532615 is 516235760186.

681067532615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 681067532615 - 2² = 681067532611 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 (681067532611) 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, 12019631 + ... + 12076160.

It is an arithmetic number, because the mean of its divisors is an integer number (102178205976).

Almost surely, 2^681067532615 is an apocalyptic number.

681067532615 is a deficient number, since it is larger than the sum of its proper divisors (136358115193).

681067532615 is a wasteful number, since it uses less digits than its factorization.

681067532615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24101449.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 681067532615 in words is "six hundred eighty-one billion, sixty-seven million, five hundred thirty-two thousand, six hundred fifteen".