611142896 has 120 divisors (see below), whose sum is σ = 1509215904. Its totient is φ = 237565440.

The previous prime is 611142859. The next prime is 611142907. The reversal of 611142896 is 698241116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 621221 + ... + 622203.

Almost surely, 2^611142896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611142896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754607952).

611142896 is an abundant number, since it is smaller than the sum of its proper divisors (898073008).

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

611142896 is a wasteful number, since it uses less digits than its factorization.

611142896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1066 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 611142896 is about 24721.3044963246. The cubic root of 611142896 is about 848.6219405050.

The spelling of 611142896 in words is "six hundred eleven million, one hundred forty-two thousand, eight hundred ninety-six".