501244121622450 has 48 divisors (see below), whose sum is σ = 1248513742327680. Its totient is φ = 133081408701120.

The previous prime is 501244121622389. The next prime is 501244121622457. The reversal of 501244121622450 is 54226121442105.

It is a super-2 number, since 2×501244121622450² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501244121622399 and 501244121622408.

It is not an unprimeable number, because it can be changed into a prime (501244121622457) 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, 7296095514 + ... + 7296164213.

It is an arithmetic number, because the mean of its divisors is an integer number (26010702965160).

Almost surely, 2^{501244121622450} is an apocalyptic number.

501244121622450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

501244121622450 is an abundant number, since it is smaller than the sum of its proper divisors (747269620705230).

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

501244121622450 is a wasteful number, since it uses less digits than its factorization.

501244121622450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592259971 (or 14592259966 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 501244121622450 in words is "five hundred one trillion, two hundred forty-four billion, one hundred twenty-one million, six hundred twenty-two thousand, four hundred fifty".