2042123677551 has 12 divisors (see below), whose sum is σ = 2952692823912. Its totient is φ = 1360050266736.

The previous prime is 2042123677541. The next prime is 2042123677567. The reversal of 2042123677551 is 1557763212402.

2042123677551 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 1 + 23 + 6 + 77 + 551 = 666.

It is not a de Polignac number, because 2042123677551 - 2⁶ = 2042123677487 is a prime.

It is a super-2 number, since 2×2042123677551² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2042123677497 and 2042123677506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042123677501) 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, 113783721 + ... + 113801666.

It is an arithmetic number, because the mean of its divisors is an integer number (246057735326).

Almost surely, 2^{2042123677551} is an apocalyptic number.

2042123677551 is a deficient number, since it is larger than the sum of its proper divisors (910569146361).

2042123677551 is a wasteful number, since it uses less digits than its factorization.

2042123677551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227586390 (or 227586387 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

Adding to 2042123677551 its reverse (1557763212402), we get a palindrome (3599886889953).

The spelling of 2042123677551 in words is "two trillion, forty-two billion, one hundred twenty-three million, six hundred seventy-seven thousand, five hundred fifty-one".