686554507023 has 32 divisors (see below), whose sum is σ = 1147078817280. Its totient is φ = 354841253760.

The previous prime is 686554507013. The next prime is 686554507033. The reversal of 686554507023 is 320705455686.

It is an interprime number because it is at equal distance from previous prime (686554507013) and next prime (686554507033).

It is not a de Polignac number, because 686554507023 - 2¹⁶ = 686554441487 is a prime.

It is a super-2 number, since 2×686554507023² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686554507013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7497888 + ... + 7588901.

It is an arithmetic number, because the mean of its divisors is an integer number (35846213040).

Almost surely, 2^686554507023 is an apocalyptic number.

686554507023 is a deficient number, since it is larger than the sum of its proper divisors (460524310257).

686554507023 is a wasteful number, since it uses less digits than its factorization.

686554507023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087007.

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 686554507023 in words is "six hundred eighty-six billion, five hundred fifty-four million, five hundred seven thousand, twenty-three".