687149444301 has 16 divisors (see below), whose sum is σ = 920619260928. Its totient is φ = 455891313200.

The previous prime is 687149444281. The next prime is 687149444341. The reversal of 687149444301 is 103444941786.

It is a cyclic number.

It is not a de Polignac number, because 687149444301 - 2¹⁴ = 687149427917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687149444341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432636 + ... + 1851146.

It is an arithmetic number, because the mean of its divisors is an integer number (57538703808).

Almost surely, 2^687149444301 is an apocalyptic number.

It is an amenable number.

687149444301 is a deficient number, since it is larger than the sum of its proper divisors (233469816627).

687149444301 is a wasteful number, since it uses less digits than its factorization.

687149444301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421152.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 687149444301 in words is "six hundred eighty-seven billion, one hundred forty-nine million, four hundred forty-four thousand, three hundred one".