681470700407 has 8 divisors (see below), whose sum is σ = 778836773376. Its totient is φ = 584107906392.

The previous prime is 681470700403. The next prime is 681470700431. The reversal of 681470700407 is 704007074186.

It is a happy number.

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 681470700407 - 2² = 681470700403 is a prime.

It is a super-3 number, since 3×681470700407³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681470700403) 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, 356963 + ... + 1220804.

It is an arithmetic number, because the mean of its divisors is an integer number (97354596672).

Almost surely, 2^681470700407 is an apocalyptic number.

681470700407 is a deficient number, since it is larger than the sum of its proper divisors (97366072969).

681470700407 is a wasteful number, since it uses less digits than its factorization.

681470700407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639477.

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 681470700407 in words is "six hundred eighty-one billion, four hundred seventy million, seven hundred thousand, four hundred seven".