20217762050 has 72 divisors (see below), whose sum is σ = 38692310736. Its totient is φ = 7859475360.

The previous prime is 20217762049. The next prime is 20217762101. The reversal of 20217762050 is 5026771202.

It is a junction number, because it is equal to n+sod(n) for n = 20217761998 and 20217762016.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18002789 + ... + 18003911.

Almost surely, 2^20217762050 is an apocalyptic number.

20217762050 is a deficient number, since it is larger than the sum of its proper divisors (18474548686).

20217762050 is a wasteful number, since it uses less digits than its factorization.

20217762050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 20217762050 in words is "twenty billion, two hundred seventeen million, seven hundred sixty-two thousand, fifty".