20475247545234 has 12 divisors (see below), whose sum is σ = 44363036348046. Its totient is φ = 6825082515072.

The previous prime is 20475247545191. The next prime is 20475247545251. The reversal of 20475247545234 is 43254574257402.

20475247545234 is a `hidden beast` number, since 2 + 0 + 4 + 7 + 52 + 47 + 545 + 2 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17302663164609 + 3172584380625 = 4159647^2 + 1781175^2 .

It is a super-2 number, since 2×20475247545234² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568756876239 + ... + 568756876274.

Almost surely, 2^{20475247545234} is an apocalyptic number.

20475247545234 is an abundant number, since it is smaller than the sum of its proper divisors (23887788802812).

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

20475247545234 is a wasteful number, since it uses less digits than its factorization.

20475247545234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137513752521 (or 1137513752518 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 54.

The spelling of 20475247545234 in words is "twenty trillion, four hundred seventy-five billion, two hundred forty-seven million, five hundred forty-five thousand, two hundred thirty-four".