686348932740 has 48 divisors (see below), whose sum is σ = 1921815994560. Its totient is φ = 183022669440.

The previous prime is 686348932723. The next prime is 686348932747. The reversal of 686348932740 is 47239843686.

It is a super-3 number, since 3×686348932740³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (686348932747) 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, 4183050 + ... + 4344030.

It is an arithmetic number, because the mean of its divisors is an integer number (40037833220).

Almost surely, 2^686348932740 is an apocalyptic number.

686348932740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

686348932740 is an abundant number, since it is smaller than the sum of its proper divisors (1235467061820).

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

686348932740 is a wasteful number, since it uses less digits than its factorization.

686348932740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232052 (or 232050 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 60.

The spelling of 686348932740 in words is "six hundred eighty-six billion, three hundred forty-eight million, nine hundred thirty-two thousand, seven hundred forty".