611672851 has 4 divisors (see below), whose sum is σ = 611770432. Its totient is φ = 611575272.

The previous prime is 611672849. The next prime is 611672911. The reversal of 611672851 is 158276116.

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 611672851 - 2¹ = 611672849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 611672851.

It is not an unprimeable number, because it can be changed into a prime (611675851) 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, 38691 + ... + 52156.

It is an arithmetic number, because the mean of its divisors is an integer number (152942608).

Almost surely, 2^611672851 is an apocalyptic number.

611672851 is a deficient number, since it is larger than the sum of its proper divisors (97581).

611672851 is an equidigital number, since it uses as much as digits as its factorization.

611672851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97580.

The product of its digits is 20160, while the sum is 37.

The square root of 611672851 is about 24732.0207625661. The cubic root of 611672851 is about 848.8671649365.

The spelling of 611672851 in words is "six hundred eleven million, six hundred seventy-two thousand, eight hundred fifty-one".