4451354142520 has 16 divisors (see below), whose sum is σ = 10015546820760. Its totient is φ = 1780541656992.

The previous prime is 4451354142509. The next prime is 4451354142523. The reversal of 4451354142520 is 252414531544.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 111283853563 = 4451354142520 / (4 + 4 + 5 + 1 + 3 + 5 + 4 + 1 + 4 + 2 + 5 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451354142523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55641926742 + ... + 55641926821.

Almost surely, 2^{4451354142520} is an apocalyptic number.

4451354142520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4451354142520 is an abundant number, since it is smaller than the sum of its proper divisors (5564192678240).

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

4451354142520 is a wasteful number, since it uses less digits than its factorization.

4451354142520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111283853574 (or 111283853570 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 4451354142520 in words is "four trillion, four hundred fifty-one billion, three hundred fifty-four million, one hundred forty-two thousand, five hundred twenty".