9954499780 has 12 divisors (see below), whose sum is σ = 20904449580. Its totient is φ = 3981799904.

The previous prime is 9954499769. The next prime is 9954499799. The reversal of 9954499780 is 879944599.

It can be written as a sum of positive squares in 2 ways, for example, as 2202049476 + 7752450304 = 46926^2 + 88048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248862475 + ... + 248862514.

It is an arithmetic number, because the mean of its divisors is an integer number (1742037465).

Almost surely, 2^9954499780 is an apocalyptic number.

It is an amenable number.

9954499780 is an abundant number, since it is smaller than the sum of its proper divisors (10949949800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9954499780 is a wasteful number, since it uses less digits than its factorization.

9954499780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497724998 (or 497724996 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 64.

The square root of 9954499780 is about 99772.2395258320. The cubic root of 9954499780 is about 2151.1621465412.

The spelling of 9954499780 in words is "nine billion, nine hundred fifty-four million, four hundred ninety-nine thousand, seven hundred eighty".