9920648950 has 24 divisors (see below), whose sum is σ = 18712306800. Its totient is φ = 3912367200.

The previous prime is 9920648921. The next prime is 9920648971. The reversal of 9920648950 is 598460299.

It is a super-2 number, since 2×9920648950² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1393725 + ... + 1400824.

It is an arithmetic number, because the mean of its divisors is an integer number (779679450).

Almost surely, 2^9920648950 is an apocalyptic number.

9920648950 is a deficient number, since it is larger than the sum of its proper divisors (8791657850).

9920648950 is a wasteful number, since it uses less digits than its factorization.

9920648950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794632 (or 2794627 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 9920648950 is about 99602.4545380283. The cubic root of 9920648950 is about 2148.7209951930.

The spelling of 9920648950 in words is "nine billion, nine hundred twenty million, six hundred forty-eight thousand, nine hundred fifty".