20949632050 has 24 divisors (see below), whose sum is σ = 39205388016. Its totient is φ = 8328439440.

The previous prime is 20949632029. The next prime is 20949632057. The reversal of 20949632050 is 5023694902.

It is a junction number, because it is equal to n+sod(n) for n = 20949631994 and 20949632012.

It is not an unprimeable number, because it can be changed into a prime (20949632057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277104 + ... + 1293403.

It is an arithmetic number, because the mean of its divisors is an integer number (1633557834).

Almost surely, 2^20949632050 is an apocalyptic number.

20949632050 is a deficient number, since it is larger than the sum of its proper divisors (18255755966).

20949632050 is a wasteful number, since it uses less digits than its factorization.

20949632050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570682 (or 2570677 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 20949632050 in words is "twenty billion, nine hundred forty-nine million, six hundred thirty-two thousand, fifty".