645100041135 has 16 divisors (see below), whose sum is σ = 1125992799360. Its totient is φ = 312775777440.

The previous prime is 645100041127. The next prime is 645100041149. The reversal of 645100041135 is 531140001546.

It is a happy number.

It is not a de Polignac number, because 645100041135 - 2³ = 645100041127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1954848445 + ... + 1954848774.

It is an arithmetic number, because the mean of its divisors is an integer number (70374549960).

Almost surely, 2^645100041135 is an apocalyptic number.

645100041135 is a deficient number, since it is larger than the sum of its proper divisors (480892758225).

645100041135 is a wasteful number, since it uses less digits than its factorization.

645100041135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909697238.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 645100041135 in words is "six hundred forty-five billion, one hundred million, forty-one thousand, one hundred thirty-five".