20020749529474 has 16 divisors (see below), whose sum is σ = 31612474605600. Its totient is φ = 9483283488384.

The previous prime is 20020749529399. The next prime is 20020749529477. The reversal of 20020749529474 is 47492594702002.

It is a super-3 number, since 3×20020749529474³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20020749529477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4777039 + ... + 7928530.

It is an arithmetic number, because the mean of its divisors is an integer number (1975779662850).

Almost surely, 2^{20020749529474} is an apocalyptic number.

20020749529474 is a deficient number, since it is larger than the sum of its proper divisors (11591725076126).

20020749529474 is a wasteful number, since it uses less digits than its factorization.

20020749529474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12747057.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 20020749529474 in words is "twenty trillion, twenty billion, seven hundred forty-nine million, five hundred twenty-nine thousand, four hundred seventy-four".