686494507001 has 4 divisors (see below), whose sum is σ = 686506191504. Its totient is φ = 686482822500.

The previous prime is 686494506977. The next prime is 686494507009. The reversal of 686494507001 is 100705494686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 686494507001 - 2⁶ = 686494506937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686494507009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5753675 + ... + 5871776.

It is an arithmetic number, because the mean of its divisors is an integer number (171626547876).

Almost surely, 2^686494507001 is an apocalyptic number.

It is an amenable number.

686494507001 is a deficient number, since it is larger than the sum of its proper divisors (11684503).

686494507001 is a wasteful number, since it uses less digits than its factorization.

686494507001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11684502.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 686494507001 in words is "six hundred eighty-six billion, four hundred ninety-four million, five hundred seven thousand, one".