20100244854 has 32 divisors (see below), whose sum is σ = 40287432960. Its totient is φ = 6685610400.

The previous prime is 20100244807. The next prime is 20100244889. The reversal of 20100244854 is 45844200102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8440744 + ... + 8443124.

It is an arithmetic number, because the mean of its divisors is an integer number (1258982280).

Almost surely, 2^20100244854 is an apocalyptic number.

20100244854 is an abundant number, since it is smaller than the sum of its proper divisors (20187188106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100244854 is a wasteful number, since it uses less digits than its factorization.

20100244854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 20100244854 its reverse (45844200102), we get a palindrome (65944444956).

The spelling of 20100244854 in words is "twenty billion, one hundred million, two hundred forty-four thousand, eight hundred fifty-four".