2152777704 has 128 divisors (see below), whose sum is σ = 6740582400. Its totient is φ = 556611840.

The previous prime is 2152777699. The next prime is 2152777717. The reversal of 2152777704 is 4077772512.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 420649 + ... + 425735.

It is an arithmetic number, because the mean of its divisors is an integer number (52660800).

Almost surely, 2^2152777704 is an apocalyptic number.

2152777704 is a gapful number since it is divisible by the number (24) 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 2152777704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370291200).

2152777704 is an abundant number, since it is smaller than the sum of its proper divisors (4587804696).

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

2152777704 is a wasteful number, since it uses less digits than its factorization.

2152777704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343 (or 5339 counting only the distinct ones).

The product of its (nonzero) digits is 192080, while the sum is 42.

The square root of 2152777704 is about 46398.0355618640. The cubic root of 2152777704 is about 1291.2184677489.

It can be divided in two parts, 21 and 52777704, that added together give a palindrome (52777725).

The spelling of 2152777704 in words is "two billion, one hundred fifty-two million, seven hundred seventy-seven thousand, seven hundred four".