514152021540 has 48 divisors (see below), whose sum is σ = 1448246201472. Its totient is φ = 136286201856.

The previous prime is 514152021529. The next prime is 514152021577. The reversal of 514152021540 is 45120251415.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 514152021498 and 514152021507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25646269 + ... + 25666308.

It is an arithmetic number, because the mean of its divisors is an integer number (30171795864).

Almost surely, 2^514152021540 is an apocalyptic number.

It is an amenable number.

514152021540 is an abundant number, since it is smaller than the sum of its proper divisors (934094179932).

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

514152021540 is a wasteful number, since it uses less digits than its factorization.

514152021540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51312756 (or 51312754 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 514152021540 its reverse (45120251415), we get a palindrome (559272272955).

The spelling of 514152021540 in words is "five hundred fourteen billion, one hundred fifty-two million, twenty-one thousand, five hundred forty".