611023603451 has 4 divisors (see below), whose sum is σ = 630734042304. Its totient is φ = 591313164600.

The previous prime is 611023603403. The next prime is 611023603471. The reversal of 611023603451 is 154306320116.

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 611023603451 - 2²⁶ = 610956494587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611023603471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9855219380 + ... + 9855219441.

It is an arithmetic number, because the mean of its divisors is an integer number (157683510576).

Almost surely, 2^611023603451 is an apocalyptic number.

611023603451 is a deficient number, since it is larger than the sum of its proper divisors (19710438853).

611023603451 is a wasteful number, since it uses less digits than its factorization.

611023603451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710438852.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 611023603451 its reverse (154306320116), we get a palindrome (765329923567).

The spelling of 611023603451 in words is "six hundred eleven billion, twenty-three million, six hundred three thousand, four hundred fifty-one".