612772776 has 160 divisors (see below), whose sum is σ = 2140015680. Its totient is φ = 159148800.

The previous prime is 612772751. The next prime is 612772789. The reversal of 612772776 is 677277216.

612772776 is a `hidden beast` number, since 612 + 7 + 7 + 27 + 7 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43756 + ... + 56036.

It is an arithmetic number, because the mean of its divisors is an integer number (13375098).

Almost surely, 2^612772776 is an apocalyptic number.

612772776 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612772776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070007840).

612772776 is an abundant number, since it is smaller than the sum of its proper divisors (1527242904).

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

612772776 is a wasteful number, since it uses less digits than its factorization.

612772776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317 (or 12304 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 612772776 is about 24754.2476355069. The cubic root of 612772776 is about 849.3756781130.

The spelling of 612772776 in words is "six hundred twelve million, seven hundred seventy-two thousand, seven hundred seventy-six".