690418378347 has 4 divisors (see below), whose sum is σ = 920557837800. Its totient is φ = 460278918896.

The previous prime is 690418378339. The next prime is 690418378361. The reversal of 690418378347 is 743873814096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690418378347 - 2³ = 690418378339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690418378337) 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, 115069729722 + ... + 115069729727.

It is an arithmetic number, because the mean of its divisors is an integer number (230139459450).

Almost surely, 2^690418378347 is an apocalyptic number.

690418378347 is a deficient number, since it is larger than the sum of its proper divisors (230139459453).

690418378347 is a wasteful number, since it uses less digits than its factorization.

690418378347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230139459452.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 690418378347 in words is "six hundred ninety billion, four hundred eighteen million, three hundred seventy-eight thousand, three hundred forty-seven".