20293705454 has 24 divisors (see below), whose sum is σ = 33519112200. Its totient is φ = 9207965360.

The previous prime is 20293705423. The next prime is 20293705561. The reversal of 20293705454 is 45450739202.

It is a super-2 number, since 2×20293705454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61772 + ... + 210720.

It is an arithmetic number, because the mean of its divisors is an integer number (1396629675).

Almost surely, 2^20293705454 is an apocalyptic number.

20293705454 is a deficient number, since it is larger than the sum of its proper divisors (13225406746).

20293705454 is a wasteful number, since it uses less digits than its factorization.

20293705454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149536 (or 149525 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 20293705454 in words is "twenty billion, two hundred ninety-three million, seven hundred five thousand, four hundred fifty-four".