611412652651 has 4 divisors (see below), whose sum is σ = 632495847600. Its totient is φ = 590329457704.

The previous prime is 611412652639. The next prime is 611412652661. The reversal of 611412652651 is 156256214116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 611412652651 - 2¹⁹ = 611412128363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611412652661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10541597431 + ... + 10541597488.

It is an arithmetic number, because the mean of its divisors is an integer number (158123961900).

Almost surely, 2^611412652651 is an apocalyptic number.

611412652651 is a deficient number, since it is larger than the sum of its proper divisors (21083194949).

611412652651 is a wasteful number, since it uses less digits than its factorization.

611412652651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21083194948.

The product of its digits is 86400, while the sum is 40.

Adding to 611412652651 its reverse (156256214116), we get a palindrome (767668866767).

The spelling of 611412652651 in words is "six hundred eleven billion, four hundred twelve million, six hundred fifty-two thousand, six hundred fifty-one".