2152738877 has 4 divisors (see below), whose sum is σ = 2184869376. Its totient is φ = 2120608380.

The previous prime is 2152738873. The next prime is 2152738901. The reversal of 2152738877 is 7788372512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2152738877 - 2² = 2152738873 is a prime.

It is a super-2 number, since 2×2152738877² = 9268569345094442258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152738871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16065149 + ... + 16065282.

It is an arithmetic number, because the mean of its divisors is an integer number (546217344).

Almost surely, 2^2152738877 is an apocalyptic number.

It is an amenable number.

2152738877 is a deficient number, since it is larger than the sum of its proper divisors (32130499).

2152738877 is an equidigital number, since it uses as much as digits as its factorization.

2152738877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32130498.

The product of its digits is 1317120, while the sum is 50.

The square root of 2152738877 is about 46397.6171478665. The cubic root of 2152738877 is about 1291.2107049965.

The spelling of 2152738877 in words is "two billion, one hundred fifty-two million, seven hundred thirty-eight thousand, eight hundred seventy-seven".