7772145852 has 96 divisors (see below), whose sum is σ = 19675828480. Its totient is φ = 2379456000.

The previous prime is 7772145827. The next prime is 7772145863. The reversal of 7772145852 is 2585412777.

It is a super-2 number, since 2×7772145852² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2588352 + ... + 2591352.

Almost surely, 2^7772145852 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 7772145852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9837914240).

7772145852 is an abundant number, since it is smaller than the sum of its proper divisors (11903682628).

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

7772145852 is a wasteful number, since it uses less digits than its factorization.

7772145852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371 (or 3369 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 48.

The square root of 7772145852 is about 88159.7745686773. The cubic root of 7772145852 is about 1980.8289774378.

The spelling of 7772145852 in words is "seven billion, seven hundred seventy-two million, one hundred forty-five thousand, eight hundred fifty-two".