402653816418 has 32 divisors (see below), whose sum is σ = 934088177664. Its totient is φ = 113326872912.

The previous prime is 402653816417. The next prime is 402653816437. The reversal of 402653816418 is 814618356204.

It is not an unprimeable number, because it can be changed into a prime (402653816417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71541930 + ... + 71547557.

It is an arithmetic number, because the mean of its divisors is an integer number (29190255552).

Almost surely, 2^402653816418 is an apocalyptic number.

402653816418 is an abundant number, since it is smaller than the sum of its proper divisors (531434361246).

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

402653816418 is a wasteful number, since it uses less digits than its factorization.

402653816418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143089566.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 402653816418 in words is "four hundred two billion, six hundred fifty-three million, eight hundred sixteen thousand, four hundred eighteen".