538007503871640 has 64 divisors (see below), whose sum is σ = 1760751830856960. Its totient is φ = 130426061544320.

The previous prime is 538007503871609. The next prime is 538007503871797. The reversal of 538007503871640 is 46178305700835.

It is a congruent number.

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, 203790719844 + ... + 203790722483.

It is an arithmetic number, because the mean of its divisors is an integer number (27511747357140).

Almost surely, 2^{538007503871640} is an apocalyptic number.

It is an amenable number.

538007503871640 is an abundant number, since it is smaller than the sum of its proper divisors (1222744326985320).

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

538007503871640 is a wasteful number, since it uses less digits than its factorization.

538007503871640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407581442352 (or 407581442348 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 538007503871640 in words is "five hundred thirty-eight trillion, seven billion, five hundred three million, eight hundred seventy-one thousand, six hundred forty".