20043215049 has 16 divisors (see below), whose sum is σ = 31396365504. Its totient is φ = 11212987200.

The previous prime is 20043215047. The next prime is 20043215089. The reversal of 20043215049 is 94051234002.

It is not a de Polignac number, because 20043215049 - 2¹ = 20043215047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20043215041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23359962 + ... + 23360819.

It is an arithmetic number, because the mean of its divisors is an integer number (1962272844).

Almost surely, 2^20043215049 is an apocalyptic number.

It is an amenable number.

20043215049 is a deficient number, since it is larger than the sum of its proper divisors (11353150455).

20043215049 is a wasteful number, since it uses less digits than its factorization.

20043215049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46720808.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 20043215049 in words is "twenty billion, forty-three million, two hundred fifteen thousand, forty-nine".