2051703404172 has 72 divisors (see below), whose sum is σ = 5327415548000. Its totient is φ = 665292849408.

The previous prime is 2051703404141. The next prime is 2051703404183. The reversal of 2051703404172 is 2714043071502.

2051703404172 is a `hidden beast` number, since 2 + 0 + 517 + 0 + 34 + 0 + 41 + 72 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7116729 + ... + 7399407.

Almost surely, 2^{2051703404172} is an apocalyptic number.

It is an amenable number.

2051703404172 is an abundant number, since it is smaller than the sum of its proper divisors (3275712143828).

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

2051703404172 is a wasteful number, since it uses less digits than its factorization.

2051703404172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288175 (or 288170 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 2051703404172 its reverse (2714043071502), we get a palindrome (4765746475674).

The spelling of 2051703404172 in words is "two trillion, fifty-one billion, seven hundred three million, four hundred four thousand, one hundred seventy-two".