647966900627 has 32 divisors (see below), whose sum is σ = 694757241024. Its totient is φ = 603454924800.

The previous prime is 647966900599. The next prime is 647966900701. The reversal of 647966900627 is 726009669746.

It is not a de Polignac number, because 647966900627 - 2⁶ = 647966900563 is a prime.

It is a super-2 number, since 2×647966900627² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 647966900627.

It is not an unprimeable number, because it can be changed into a prime (647966900027) 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, 16865063 + ... + 16903439.

It is an arithmetic number, because the mean of its divisors is an integer number (21711163782).

Almost surely, 2^647966900627 is an apocalyptic number.

647966900627 is a deficient number, since it is larger than the sum of its proper divisors (46790340397).

647966900627 is a wasteful number, since it uses less digits than its factorization.

647966900627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38679.

The product of its (nonzero) digits is 41150592, while the sum is 62.

The spelling of 647966900627 in words is "six hundred forty-seven billion, nine hundred sixty-six million, nine hundred thousand, six hundred twenty-seven".