20312445454 has 16 divisors (see below), whose sum is σ = 34986370176. Its totient is φ = 8664075000.

The previous prime is 20312445431. The next prime is 20312445467. The reversal of 20312445454 is 45454421302.

It is a super-2 number, since 2×20312445454² (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 7 ways as a sum of consecutive naturals, for example, 3435172 + ... + 3441079.

It is an arithmetic number, because the mean of its divisors is an integer number (2186648136).

Almost surely, 2^20312445454 is an apocalyptic number.

20312445454 is a deficient number, since it is larger than the sum of its proper divisors (14673924722).

20312445454 is a wasteful number, since it uses less digits than its factorization.

20312445454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876471.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 20312445454 its reverse (45454421302), we get a palindrome (65766866756).

The spelling of 20312445454 in words is "twenty billion, three hundred twelve million, four hundred forty-five thousand, four hundred fifty-four".