44840638978 has 8 divisors (see below), whose sum is σ = 67383923472. Its totient is φ = 22379331156.

The previous prime is 44840638963. The next prime is 44840638987. The reversal of 44840638978 is 87983604844.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 20492800 + ... + 20494987.

It is an arithmetic number, because the mean of its divisors is an integer number (8422990434).

Almost surely, 2^44840638978 is an apocalyptic number.

44840638978 is a deficient number, since it is larger than the sum of its proper divisors (22543284494).

44840638978 is a wasteful number, since it uses less digits than its factorization.

44840638978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988336.

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 44840638978 in words is "forty-four billion, eight hundred forty million, six hundred thirty-eight thousand, nine hundred seventy-eight".