640040060462 has 32 divisors (see below), whose sum is σ = 1091067667200. Its totient is φ = 279020785600.

The previous prime is 640040060461. The next prime is 640040060509. The reversal of 640040060462 is 264060040046.

It is a super-3 number, since 3×640040060462³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640040060461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5960162 + ... + 6066597.

It is an arithmetic number, because the mean of its divisors is an integer number (34095864600).

Almost surely, 2^640040060462 is an apocalyptic number.

640040060462 is a deficient number, since it is larger than the sum of its proper divisors (451027606738).

640040060462 is a wasteful number, since it uses less digits than its factorization.

640040060462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026872.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 640040060462 in words is "six hundred forty billion, forty million, sixty thousand, four hundred sixty-two".