7771020152 has 48 divisors (see below), whose sum is σ = 17025744960. Its totient is φ = 3315465216.

The previous prime is 7771020151. The next prime is 7771020181. The reversal of 7771020152 is 2510201777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7771020151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42968 + ... + 131864.

It is an arithmetic number, because the mean of its divisors is an integer number (354703020).

Almost surely, 2^7771020152 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 7771020152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8512872480).

7771020152 is an abundant number, since it is smaller than the sum of its proper divisors (9254724808).

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

7771020152 is a wasteful number, since it uses less digits than its factorization.

7771020152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89140 (or 89129 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 7771020152 is about 88153.3899064579. The cubic root of 7771020152 is about 1980.7333398929.

The spelling of 7771020152 in words is "seven billion, seven hundred seventy-one million, twenty thousand, one hundred fifty-two".