20263524745 has 32 divisors (see below), whose sum is σ = 25624304640. Its totient is φ = 15353257920.

The previous prime is 20263524737. The next prime is 20263524761. The reversal of 20263524745 is 54742536202.

It is a happy number.

It is not a de Polignac number, because 20263524745 - 2³ = 20263524737 is a prime.

It is a super-2 number, since 2×20263524745² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20263524698 and 20263524707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8239326 + ... + 8241784.

It is an arithmetic number, because the mean of its divisors is an integer number (800759520).

Almost surely, 2^20263524745 is an apocalyptic number.

It is an amenable number.

20263524745 is a deficient number, since it is larger than the sum of its proper divisors (5360779895).

20263524745 is a wasteful number, since it uses less digits than its factorization.

20263524745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 20263524745 in words is "twenty billion, two hundred sixty-three million, five hundred twenty-four thousand, seven hundred forty-five".