44404451687816 has 32 divisors (see below), whose sum is σ = 91005730243200. Its totient is φ = 20144187743040.

The previous prime is 44404451687753. The next prime is 44404451687831. The reversal of 44404451687816 is 61878615440444.

It is a happy number.

It is a super-2 number, since 2×44404451687816² (a number of 28 digits) contains 22 as substring.

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, 495629120 + ... + 495718703.

It is an arithmetic number, because the mean of its divisors is an integer number (2843929070100).

Almost surely, 2^{44404451687816} is an apocalyptic number.

It is an amenable number.

44404451687816 is an abundant number, since it is smaller than the sum of its proper divisors (46601278555384).

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

44404451687816 is a wasteful number, since it uses less digits than its factorization.

44404451687816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991348349 (or 991348345 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 62.

The spelling of 44404451687816 in words is "forty-four trillion, four hundred four billion, four hundred fifty-one million, six hundred eighty-seven thousand, eight hundred sixteen".