2051232402432 has 352 divisors, whose sum is σ = 5965868505600. Its totient is φ = 624121085952.

The previous prime is 2051232402409. The next prime is 2051232402437. The reversal of 2051232402432 is 2342042321502.

It is a self number, because there is not a number n which added to its sum of digits gives 2051232402432.

It is not an unprimeable number, because it can be changed into a prime (2051232402437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1095157848 + ... + 1095159720.

Almost surely, 2^{2051232402432} 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 2051232402432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2982934252800).

2051232402432 is an abundant number, since it is smaller than the sum of its proper divisors (3914636103168).

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

2051232402432 is a wasteful number, since it uses less digits than its factorization.

2051232402432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2573 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 2051232402432 its reverse (2342042321502), we get a palindrome (4393274723934).

The spelling of 2051232402432 in words is "two trillion, fifty-one billion, two hundred thirty-two million, four hundred two thousand, four hundred thirty-two".