681385143010 has 32 divisors (see below), whose sum is σ = 1440915158592. Its totient is φ = 228716690880.

The previous prime is 681385143001. The next prime is 681385143037. The reversal of 681385143010 is 10341583186.

It is a happy number.

681385143010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×681385143010² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238245124 + ... + 238247983.

It is an arithmetic number, because the mean of its divisors is an integer number (45028598706).

Almost surely, 2^681385143010 is an apocalyptic number.

681385143010 is an abundant number, since it is smaller than the sum of its proper divisors (759530015582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681385143010 is a wasteful number, since it uses less digits than its factorization.

681385143010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476493138.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 681385143010 in words is "six hundred eighty-one billion, three hundred eighty-five million, one hundred forty-three thousand, ten".