44493607778 has 16 divisors (see below), whose sum is σ = 69825948480. Its totient is φ = 21223396656.

The previous prime is 44493607777. The next prime is 44493607819. The reversal of 44493607778 is 87770639444.

It is a super-2 number, since 2×44493607778² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44493607771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258625 + ... + 1293492.

It is an arithmetic number, because the mean of its divisors is an integer number (4364121780).

Almost surely, 2^44493607778 is an apocalyptic number.

44493607778 is a deficient number, since it is larger than the sum of its proper divisors (25332340702).

44493607778 is a wasteful number, since it uses less digits than its factorization.

44493607778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552521.

The product of its (nonzero) digits is 28449792, while the sum is 59.

The spelling of 44493607778 in words is "forty-four billion, four hundred ninety-three million, six hundred seven thousand, seven hundred seventy-eight".