20473145753 has 8 divisors (see below), whose sum is σ = 21741396000. Its totient is φ = 19223967168.

The previous prime is 20473145743. The next prime is 20473145807. The reversal of 20473145753 is 35754137402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20473145753 - 2¹² = 20473141657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20473145753.

It is not an unprimeable number, because it can be changed into a prime (20473145743) 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, 4765703 + ... + 4769996.

It is an arithmetic number, because the mean of its divisors is an integer number (2717674500).

Almost surely, 2^20473145753 is an apocalyptic number.

It is an amenable number.

20473145753 is a deficient number, since it is larger than the sum of its proper divisors (1268250247).

20473145753 is a wasteful number, since it uses less digits than its factorization.

20473145753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535831.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 20473145753 in words is "twenty billion, four hundred seventy-three million, one hundred forty-five thousand, seven hundred fifty-three".