402151545612 has 36 divisors (see below), whose sum is σ = 1017701066200. Its totient is φ = 133898692032.

The previous prime is 402151545611. The next prime is 402151545613. The reversal of 402151545612 is 216545151204.

402151545612 is a `hidden beast` number, since 4 + 0 + 2 + 1 + 51 + 545 + 61 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (402151545611) and next prime (402151545613).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (402151545611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6293737 + ... + 6357312.

Almost surely, 2^402151545612 is an apocalyptic number.

It is an amenable number.

402151545612 is an abundant number, since it is smaller than the sum of its proper divisors (615549520588).

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

402151545612 is a wasteful number, since it uses less digits than its factorization.

402151545612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12651942 (or 12651937 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 402151545612 its reverse (216545151204), we get a palindrome (618696696816).

The spelling of 402151545612 in words is "four hundred two billion, one hundred fifty-one million, five hundred forty-five thousand, six hundred twelve".