617220677027 has 4 divisors (see below), whose sum is σ = 619803190560. Its totient is φ = 614638163496.

The previous prime is 617220677023. The next prime is 617220677063. The reversal of 617220677027 is 720776022716.

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 617220677027 - 2² = 617220677023 is a prime.

It is a super-2 number, since 2×617220677027² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617220677023) 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, 1291256408 + ... + 1291256885.

It is an arithmetic number, because the mean of its divisors is an integer number (154950797640).

Almost surely, 2^617220677027 is an apocalyptic number.

617220677027 is a deficient number, since it is larger than the sum of its proper divisors (2582513533).

617220677027 is a wasteful number, since it uses less digits than its factorization.

617220677027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582513532.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 617220677027 in words is "six hundred seventeen billion, two hundred twenty million, six hundred seventy-seven thousand, twenty-seven".