501442454154019 has 6 divisors (see below), whose sum is σ = 583310609934324. Its totient is φ = 429807817846260.

The previous prime is 501442454153987. The next prime is 501442454154043. The reversal of 501442454154019 is 910451454244105.

It is not a de Polignac number, because 501442454154019 - 2⁵ = 501442454153987 is a prime.

It is a super-2 number, since 2×501442454154019² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 10233519472531 = 501442454154019 / (5 + 0 + 1 + 4 + 4 + 2 + 4 + 5 + 4 + 1 + 5 + 4 + 0 + 1 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501442454154419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5116759736217 + ... + 5116759736314.

It is an arithmetic number, because the mean of its divisors is an integer number (97218434989054).

Almost surely, 2^{501442454154019} is an apocalyptic number.

501442454154019 is a deficient number, since it is larger than the sum of its proper divisors (81868155780305).

501442454154019 is a wasteful number, since it uses less digits than its factorization.

501442454154019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233519472545 (or 10233519472538 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

The spelling of 501442454154019 in words is "five hundred one trillion, four hundred forty-two billion, four hundred fifty-four million, one hundred fifty-four thousand, nineteen".