611431848 has 128 divisors (see below), whose sum is σ = 1769472000. Its totient is φ = 195410880.

The previous prime is 611431841. The next prime is 611431859. The reversal of 611431848 is 848134116.

It is a happy number.

611431848 is a `hidden beast` number, since 611 + 4 + 31 + 8 + 4 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (611431841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 850033 + ... + 850751.

It is an arithmetic number, because the mean of its divisors is an integer number (13824000).

Almost surely, 2^611431848 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 611431848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884736000).

611431848 is an abundant number, since it is smaller than the sum of its proper divisors (1158040152).

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

611431848 is a wasteful number, since it uses less digits than its factorization.

611431848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 882 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 611431848 is about 24727.1479956747. The cubic root of 611431848 is about 848.7556639342.

The spelling of 611431848 in words is "six hundred eleven million, four hundred thirty-one thousand, eight hundred forty-eight".