44909949778 has 16 divisors (see below), whose sum is σ = 67491727776. Its totient is φ = 22412748960.

The previous prime is 44909949761. The next prime is 44909949797. The reversal of 44909949778 is 87794990944.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393413 + ... + 2412103.

It is an arithmetic number, because the mean of its divisors is an integer number (4218232986).

Almost surely, 2^44909949778 is an apocalyptic number.

44909949778 is a deficient number, since it is larger than the sum of its proper divisors (22581777998).

44909949778 is a wasteful number, since it uses less digits than its factorization.

44909949778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20889.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 44909949778 in words is "forty-four billion, nine hundred nine million, nine hundred forty-nine thousand, seven hundred seventy-eight".