42021053177107 has 32 divisors (see below), whose sum is σ = 44108466554880. Its totient is φ = 39998246446080.

The previous prime is 42021053177069. The next prime is 42021053177119. The reversal of 42021053177107 is 70177135012024.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42021053177107 is a prime.

It is a super-2 number, since 2×42021053177107² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42021053177107.

It is not an unprimeable number, because it can be changed into a prime (42021053177167) 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, 155664283 + ... + 155933995.

It is an arithmetic number, because the mean of its divisors is an integer number (1378389579840).

Almost surely, 2^{42021053177107} is an apocalyptic number.

42021053177107 is a deficient number, since it is larger than the sum of its proper divisors (2087413377773).

42021053177107 is a wasteful number, since it uses less digits than its factorization.

42021053177107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270403.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 42021053177107 in words is "forty-two trillion, twenty-one billion, fifty-three million, one hundred seventy-seven thousand, one hundred seven".