611345994 has 32 divisors (see below), whose sum is σ = 1410938880. Its totient is φ = 172973232.

The previous prime is 611345983. The next prime is 611346017. The reversal of 611345994 is 499543116.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66334 + ... + 74985.

It is an arithmetic number, because the mean of its divisors is an integer number (44091840).

Almost surely, 2^611345994 is an apocalyptic number.

611345994 is an abundant number, since it is smaller than the sum of its proper divisors (799592886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611345994 is a wasteful number, since it uses less digits than its factorization.

611345994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141434.

The product of its digits is 116640, while the sum is 42.

The square root of 611345994 is about 24725.4119075901. The cubic root of 611345994 is about 848.7159361598.

The spelling of 611345994 in words is "six hundred eleven million, three hundred forty-five thousand, nine hundred ninety-four".