4051491624550 has 48 divisors (see below), whose sum is σ = 7560098488800. Its totient is φ = 1615373487360.

The previous prime is 4051491624533. The next prime is 4051491624553. The reversal of 4051491624550 is 554261941504.

It is a self number, because there is not a number n which added to its sum of digits gives 4051491624550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051491624553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20770876 + ... + 20965024.

It is an arithmetic number, because the mean of its divisors is an integer number (157502051850).

Almost surely, 2^{4051491624550} is an apocalyptic number.

4051491624550 is a deficient number, since it is larger than the sum of its proper divisors (3508606864250).

4051491624550 is a wasteful number, since it uses less digits than its factorization.

4051491624550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195505 (or 195500 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 4051491624550 in words is "four trillion, fifty-one billion, four hundred ninety-one million, six hundred twenty-four thousand, five hundred fifty".