2051688633192 has 128 divisors (see below), whose sum is σ = 6361825536000. Its totient is φ = 607265104320.

The previous prime is 2051688633179. The next prime is 2051688633199. The reversal of 2051688633192 is 2913368861502.

2051688633192 is a `hidden beast` number, since 2 + 0 + 516 + 8 + 8 + 6 + 3 + 31 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2051688633199) 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, 9938592 + ... + 10142927.

It is an arithmetic number, because the mean of its divisors is an integer number (49701762000).

Almost surely, 2^{2051688633192} is an apocalyptic number.

2051688633192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2051688633192 is an abundant number, since it is smaller than the sum of its proper divisors (4310136902808).

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

2051688633192 is a wasteful number, since it uses less digits than its factorization.

2051688633192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20081588 (or 20081578 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 2051688633192 in words is "two trillion, fifty-one billion, six hundred eighty-eight million, six hundred thirty-three thousand, one hundred ninety-two".