2656626274 has 4 divisors (see below), whose sum is σ = 3984939414. Its totient is φ = 1328313136.

The previous prime is 2656626239. The next prime is 2656626277. The reversal of 2656626274 is 4726266562.

2656626274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4726266562 = 2 ⋅2363133281.

It can be written as a sum of positive squares in only one way, i.e., 1771147225 + 885479049 = 42085^2 + 29757^2 .

It is not an unprimeable number, because it can be changed into a prime (2656626277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664156567 + ... + 664156570.

Almost surely, 2^2656626274 is an apocalyptic number.

2656626274 is a deficient number, since it is larger than the sum of its proper divisors (1328313140).

2656626274 is a wasteful number, since it uses less digits than its factorization.

2656626274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328313139.

The product of its digits is 1451520, while the sum is 46.

The square root of 2656626274 is about 51542.4705849458. The cubic root of 2656626274 is about 1384.9799549637.

It can be divided in two parts, 2656626 and 274, that added together give a square (2656900 = 1630²).

The spelling of 2656626274 in words is "two billion, six hundred fifty-six million, six hundred twenty-six thousand, two hundred seventy-four".