44978999987944 has 64 divisors (see below), whose sum is σ = 96953129988480. Its totient is φ = 19362462240000.

The previous prime is 44978999987897. The next prime is 44978999987981.

44978999987944 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×44978999987944² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44978999987944.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109809567 + ... + 110218414.

It is an arithmetic number, because the mean of its divisors is an integer number (1514892656070).

Almost surely, 2^{44978999987944} is an apocalyptic number.

44978999987944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44978999987944 is an abundant number, since it is smaller than the sum of its proper divisors (51974130000536).

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

44978999987944 is a wasteful number, since it uses less digits than its factorization.

44978999987944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220028122 (or 220028118 counting only the distinct ones).

The product of its digits is 426649337856, while the sum is 100.

The spelling of 44978999987944 in words is "forty-four trillion, nine hundred seventy-eight billion, nine hundred ninety-nine million, nine hundred eighty-seven thousand, nine hundred forty-four".