402462512064 has 168 divisors, whose sum is σ = 1159492677200. Its totient is φ = 133469171712.

The previous prime is 402462512057. The next prime is 402462512069. The reversal of 402462512064 is 460215264204.

402462512064 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 625 + 1 + 20 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402462512069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98183487 + ... + 98187585.

Almost surely, 2^402462512064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402462512064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579746338600).

402462512064 is an abundant number, since it is smaller than the sum of its proper divisors (757030165136).

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

402462512064 is a wasteful number, since it uses less digits than its factorization.

402462512064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 402462512064 its reverse (460215264204), we get a palindrome (862677776268).

The spelling of 402462512064 in words is "four hundred two billion, four hundred sixty-two million, five hundred twelve thousand, sixty-four".