20738707507422 has 24 divisors (see below), whose sum is σ = 44977364724864. Its totient is φ = 6906210431904.

The previous prime is 20738707507409. The next prime is 20738707507423. The reversal of 20738707507422 is 22470570783702.

20738707507422 is a `hidden beast` number, since 2 + 0 + 73 + 87 + 0 + 75 + 0 + 7 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738707507423) 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, 557653438 + ... + 557690625.

It is an arithmetic number, because the mean of its divisors is an integer number (1874056863536).

Almost surely, 2^{20738707507422} is an apocalyptic number.

20738707507422 is an abundant number, since it is smaller than the sum of its proper divisors (24238657217442).

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

20738707507422 is a wasteful number, since it uses less digits than its factorization.

20738707507422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115345104 (or 1115345101 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 54.

The spelling of 20738707507422 in words is "twenty trillion, seven hundred thirty-eight billion, seven hundred seven million, five hundred seven thousand, four hundred twenty-two".