501354399012 has 36 divisors (see below), whose sum is σ = 1242688132560. Its totient is φ = 157287653504.

The previous prime is 501354398971. The next prime is 501354399023. The reversal of 501354399012 is 210993453105.

It is a super-2 number, since 2×501354399012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72279462 + ... + 72286397.

Almost surely, 2^501354399012 is an apocalyptic number.

It is an amenable number.

501354399012 is an abundant number, since it is smaller than the sum of its proper divisors (741333733548).

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

501354399012 is a wasteful number, since it uses less digits than its factorization.

501354399012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144565900 (or 144565881 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 501354399012 in words is "five hundred one billion, three hundred fifty-four million, three hundred ninety-nine thousand, twelve".