20469739038 has 16 divisors (see below), whose sum is σ = 46787975040. Its totient is φ = 5848496856.

The previous prime is 20469739033. The next prime is 20469739063. The reversal of 20469739038 is 83093796402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20469739033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 243687328 + ... + 243687411.

It is an arithmetic number, because the mean of its divisors is an integer number (2924248440).

Almost surely, 2^20469739038 is an apocalyptic number.

20469739038 is an abundant number, since it is smaller than the sum of its proper divisors (26318236002).

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

20469739038 is a wasteful number, since it uses less digits than its factorization.

20469739038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487374751.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 20469739038 in words is "twenty billion, four hundred sixty-nine million, seven hundred thirty-nine thousand, thirty-eight".