690541254441 has 6 divisors (see below), whose sum is σ = 997448478650. Its totient is φ = 460360836288.

The previous prime is 690541254433. The next prime is 690541254449. The reversal of 690541254441 is 144452145096.

690541254441 is a `hidden beast` number, since 6 + 9 + 0 + 54 + 12 + 544 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (690541254433) and next prime (690541254449).

It can be written as a sum of positive squares in only one way, i.e., 614146505625 + 76394748816 = 783675^2 + 276396^2 .

It is not a de Polignac number, because 690541254441 - 2³ = 690541254433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690541254449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38363403016 + ... + 38363403033.

Almost surely, 2^690541254441 is an apocalyptic number.

It is an amenable number.

690541254441 is a deficient number, since it is larger than the sum of its proper divisors (306907224209).

690541254441 is a wasteful number, since it uses less digits than its factorization.

690541254441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76726806055 (or 76726806052 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 690541254441 in words is "six hundred ninety billion, five hundred forty-one million, two hundred fifty-four thousand, four hundred forty-one".