20747370453 has 8 divisors (see below), whose sum is σ = 27848820000. Its totient is φ = 13738750608.

The previous prime is 20747370451. The next prime is 20747370461. The reversal of 20747370453 is 35407374702.

It is a happy number.

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

It is not a de Polignac number, because 20747370453 - 2¹ = 20747370451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20747370451) 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, 23206903 + ... + 23207796.

It is an arithmetic number, because the mean of its divisors is an integer number (3481102500).

Almost surely, 2^20747370453 is an apocalyptic number.

It is an amenable number.

20747370453 is a deficient number, since it is larger than the sum of its proper divisors (7101449547).

20747370453 is a wasteful number, since it uses less digits than its factorization.

20747370453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46414851.

The product of its (nonzero) digits is 493920, while the sum is 42.

The spelling of 20747370453 in words is "twenty billion, seven hundred forty-seven million, three hundred seventy thousand, four hundred fifty-three".