20049677815 has 8 divisors (see below), whose sum is σ = 24135513120. Its totient is φ = 15989142432.

The previous prime is 20049677803. The next prime is 20049677839. The reversal of 20049677815 is 51877694002.

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

It is a cyclic number.

It is not a de Polignac number, because 20049677815 - 2¹⁷ = 20049546743 is a prime.

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, 6323235 + ... + 6326404.

It is an arithmetic number, because the mean of its divisors is an integer number (3016939140).

Almost surely, 2^20049677815 is an apocalyptic number.

20049677815 is a deficient number, since it is larger than the sum of its proper divisors (4085835305).

20049677815 is a wasteful number, since it uses less digits than its factorization.

20049677815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649961.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 20049677815 in words is "twenty billion, forty-nine million, six hundred seventy-seven thousand, eight hundred fifteen".