402205254185812 has 216 divisors, whose sum is σ = 941733536835840. Its totient is φ = 149571003859200.

The previous prime is 402205254185797. The next prime is 402205254185863. The reversal of 402205254185812 is 218581452502204.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 49922239 + ... + 57416377.

Almost surely, 2^{402205254185812} 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 402205254185812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470866768417920).

402205254185812 is an abundant number, since it is smaller than the sum of its proper divisors (539528282650028).

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

402205254185812 is a wasteful number, since it uses less digits than its factorization.

402205254185812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494283 (or 7494263 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 49.

The spelling of 402205254185812 in words is "four hundred two trillion, two hundred five billion, two hundred fifty-four million, one hundred eighty-five thousand, eight hundred twelve".