538006432690 has 32 divisors (see below), whose sum is σ = 1024749086976. Its totient is φ = 202946694720.

The previous prime is 538006432657. The next prime is 538006432739. The reversal of 538006432690 is 96234600835.

It is a happy number.

It is a super-3 number, since 3×538006432690³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 538006432690.

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, 16456617 + ... + 16489276.

It is an arithmetic number, because the mean of its divisors is an integer number (32023408968).

Almost surely, 2^538006432690 is an apocalyptic number.

538006432690 is a deficient number, since it is larger than the sum of its proper divisors (486742654286).

538006432690 is a wasteful number, since it uses less digits than its factorization.

538006432690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32945994.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 538006432690 in words is "five hundred thirty-eight billion, six million, four hundred thirty-two thousand, six hundred ninety".