4945338649944 has 384 divisors, whose sum is σ = 18144442368000. Its totient is φ = 1177642540800.

The previous prime is 4945338649921. The next prime is 4945338650023. The reversal of 4945338649944 is 4499468335494.

4945338649944 is a `hidden beast` number, since 4 + 9 + 4 + 53 + 3 + 86 + 499 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2508187 + ... + 4022645.

It is an arithmetic number, because the mean of its divisors is an integer number (47251152000).

Almost surely, 2^{4945338649944} is an apocalyptic number.

4945338649944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4945338649944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9072221184000).

4945338649944 is an abundant number, since it is smaller than the sum of its proper divisors (13199103718056).

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

4945338649944 is a wasteful number, since it uses less digits than its factorization.

4945338649944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514539 (or 1514532 counting only the distinct ones).

The product of its digits is 1612431360, while the sum is 72.

The spelling of 4945338649944 in words is "four trillion, nine hundred forty-five billion, three hundred thirty-eight million, six hundred forty-nine thousand, nine hundred forty-four".