1640611379007 has 6 divisors (see below), whose sum is σ = 2369771991912. Its totient is φ = 1093740919332.

The previous prime is 1640611378999. The next prime is 1640611379021. The reversal of 1640611379007 is 7009731160461.

It is not a de Polignac number, because 1640611379007 - 2³ = 1640611378999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640611379027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91145076603 + ... + 91145076620.

It is an arithmetic number, because the mean of its divisors is an integer number (394961998652).

Almost surely, 2^{1640611379007} is an apocalyptic number.

1640611379007 is a deficient number, since it is larger than the sum of its proper divisors (729160612905).

1640611379007 is a wasteful number, since it uses less digits than its factorization.

1640611379007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182290153229 (or 182290153226 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 1640611379007 in words is "one trillion, six hundred forty billion, six hundred eleven million, three hundred seventy-nine thousand, seven".