611050749489 has 12 divisors (see below), whose sum is σ = 882637253316. Its totient is φ = 407363292672.

The previous prime is 611050749481. The next prime is 611050749499. The reversal of 611050749489 is 984947050116.

611050749489 is a `hidden beast` number, since 6 + 1 + 10 + 507 + 49 + 4 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 418059230625 + 192991518864 = 646575^2 + 439308^2 .

It is not a de Polignac number, because 611050749489 - 2³ = 611050749481 is a prime.

It is a super-2 number, since 2×611050749489² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (611050749481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933637 + ... + 1446989.

It is an arithmetic number, because the mean of its divisors is an integer number (73553104443).

Almost surely, 2^611050749489 is an apocalyptic number.

It is an amenable number.

611050749489 is a deficient number, since it is larger than the sum of its proper divisors (271586503827).

611050749489 is a wasteful number, since it uses less digits than its factorization.

611050749489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645616 (or 645613 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 611050749489 in words is "six hundred eleven billion, fifty million, seven hundred forty-nine thousand, four hundred eighty-nine".