906605278697 has 4 divisors (see below), whose sum is σ = 906667547280. Its totient is φ = 906543010116.

The previous prime is 906605278669. The next prime is 906605278703. The reversal of 906605278697 is 796872506609.

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 906605278697 - 2⁶ = 906605278633 is a prime.

It is a super-2 number, since 2×906605278697² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906605208697) 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, 31112447 + ... + 31141572.

It is an arithmetic number, because the mean of its divisors is an integer number (226666886820).

Almost surely, 2^906605278697 is an apocalyptic number.

It is an amenable number.

906605278697 is a deficient number, since it is larger than the sum of its proper divisors (62268583).

906605278697 is a wasteful number, since it uses less digits than its factorization.

906605278697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62268582.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 906605278697 in words is "nine hundred six billion, six hundred five million, two hundred seventy-eight thousand, six hundred ninety-seven".