640411397001 has 48 divisors (see below), whose sum is σ = 956219292288. Its totient is φ = 412860672000.

The previous prime is 640411396987. The next prime is 640411397023. The reversal of 640411397001 is 100793114046.

640411397001 is a `hidden beast` number, since 640 + 4 + 1 + 1 + 3 + 9 + 7 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 640411397001 - 2⁷ = 640411396873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (640411397501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6859305 + ... + 6952041.

It is an arithmetic number, because the mean of its divisors is an integer number (19921235256).

Almost surely, 2^640411397001 is an apocalyptic number.

It is an amenable number.

640411397001 is a deficient number, since it is larger than the sum of its proper divisors (315807895287).

640411397001 is a wasteful number, since it uses less digits than its factorization.

640411397001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93022 (or 93019 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 640411397001 in words is "six hundred forty billion, four hundred eleven million, three hundred ninety-seven thousand, one".