690271914132 has 36 divisors (see below), whose sum is σ = 1752342670260. Its totient is φ = 229103121792.

The previous prime is 690271914127. The next prime is 690271914139. The reversal of 690271914132 is 231419172096.

It can be written as a sum of positive squares in 2 ways, for example, as 489221909136 + 201050004996 = 699444^2 + 448386^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690271914139) by changing a digit.

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, 41138007 + ... + 41154782.

It is an arithmetic number, because the mean of its divisors is an integer number (48676185285).

Almost surely, 2^690271914132 is an apocalyptic number.

It is an amenable number.

690271914132 is an abundant number, since it is smaller than the sum of its proper divisors (1062070756128).

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

690271914132 is a wasteful number, since it uses less digits than its factorization.

690271914132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82293032 (or 82293027 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 690271914132 in words is "six hundred ninety billion, two hundred seventy-one million, nine hundred fourteen thousand, one hundred thirty-two".