611791955 has 8 divisors (see below), whose sum is σ = 752056704. Its totient is φ = 477496000.

The previous prime is 611791933. The next prime is 611791967. The reversal of 611791955 is 559197116.

611791955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 611791955 - 2¹⁸ = 611529811 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491971 + ... + 1492380.

It is an arithmetic number, because the mean of its divisors is an integer number (94007088).

Almost surely, 2^611791955 is an apocalyptic number.

611791955 is a deficient number, since it is larger than the sum of its proper divisors (140264749).

611791955 is a wasteful number, since it uses less digits than its factorization.

611791955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984397.

The product of its digits is 85050, while the sum is 44.

The square root of 611791955 is about 24734.4285359496. The cubic root of 611791955 is about 848.9222580652.

The spelling of 611791955 in words is "six hundred eleven million, seven hundred ninety-one thousand, nine hundred fifty-five".