6400620462 has 16 divisors (see below), whose sum is σ = 13554255312. Its totient is φ = 2008037760.

The previous prime is 6400620449. The next prime is 6400620469. The reversal of 6400620462 is 2640260046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400620469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31375489 + ... + 31375692.

It is an arithmetic number, because the mean of its divisors is an integer number (847140957).

Almost surely, 2^6400620462 is an apocalyptic number.

6400620462 is an abundant number, since it is smaller than the sum of its proper divisors (7153634850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6400620462 is a wasteful number, since it uses less digits than its factorization.

6400620462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62751203.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6400620462 is about 80003.8777935170. The cubic root of 6400620462 is about 1856.6955300374.

The spelling of 6400620462 in words is "six billion, four hundred million, six hundred twenty thousand, four hundred sixty-two".