640604101007 has 8 divisors (see below), whose sum is σ = 690144991536. Its totient is φ = 591100875072.

The previous prime is 640604101001. The next prime is 640604101073. The reversal of 640604101007 is 700101406046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640604101007 - 2¹⁴ = 640604084623 is a prime.

It is a super-2 number, since 2×640604101007² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640604101001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9380813 + ... + 9448854.

It is an arithmetic number, because the mean of its divisors is an integer number (86268123942).

Almost surely, 2^640604101007 is an apocalyptic number.

640604101007 is a deficient number, since it is larger than the sum of its proper divisors (49540890529).

640604101007 is a wasteful number, since it uses less digits than its factorization.

640604101007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18832297.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 640604101007 in words is "six hundred forty billion, six hundred four million, one hundred one thousand, seven".