640265602462 has 4 divisors (see below), whose sum is σ = 960398403696. Its totient is φ = 320132801230.

The previous prime is 640265602451. The next prime is 640265602469. The reversal of 640265602462 is 264206562046.

640265602462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×640265602462² (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 (640265602469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160066400614 + ... + 160066400617.

It is an arithmetic number, because the mean of its divisors is an integer number (240099600924).

Almost surely, 2^640265602462 is an apocalyptic number.

640265602462 is a deficient number, since it is larger than the sum of its proper divisors (320132801234).

640265602462 is a wasteful number, since it uses less digits than its factorization.

640265602462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320132801233.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 640265602462 in words is "six hundred forty billion, two hundred sixty-five million, six hundred two thousand, four hundred sixty-two".