20074775007381 has 8 divisors (see below), whose sum is σ = 27026234314560. Its totient is φ = 13253249519232.

The previous prime is 20074775007379. The next prime is 20074775007383. The reversal of 20074775007381 is 18370057747002.

It is an interprime number because it is at equal distance from previous prime (20074775007379) and next prime (20074775007383).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20074775007381 - 2¹ = 20074775007379 is a prime.

It is a super-2 number, since 2×20074775007381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20074775007383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32483454396 + ... + 32483455013.

It is an arithmetic number, because the mean of its divisors is an integer number (3378279289320).

Almost surely, 2^{20074775007381} is an apocalyptic number.

It is an amenable number.

20074775007381 is a deficient number, since it is larger than the sum of its proper divisors (6951459307179).

20074775007381 is a wasteful number, since it uses less digits than its factorization.

20074775007381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64966909515.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 20074775007381 in words is "twenty trillion, seventy-four billion, seven hundred seventy-five million, seven thousand, three hundred eighty-one".