2656531434 has 16 divisors (see below), whose sum is σ = 5367837888. Its totient is φ = 876381312.

The previous prime is 2656531421. The next prime is 2656531447. The reversal of 2656531434 is 4341356562.

It is an interprime number because it is at equal distance from previous prime (2656531421) and next prime (2656531447).

It is a junction number, because it is equal to n+sod(n) for n = 2656531392 and 2656531401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281662 + ... + 2282825.

It is an arithmetic number, because the mean of its divisors is an integer number (335489868).

Almost surely, 2^2656531434 is an apocalyptic number.

2656531434 is an abundant number, since it is smaller than the sum of its proper divisors (2711306454).

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

2656531434 is a wasteful number, since it uses less digits than its factorization.

2656531434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564589.

The product of its digits is 259200, while the sum is 39.

The square root of 2656531434 is about 51541.5505587482. The cubic root of 2656531434 is about 1384.9634737768.

Adding to 2656531434 its reverse (4341356562), we get a palindrome (6997887996).

The spelling of 2656531434 in words is "two billion, six hundred fifty-six million, five hundred thirty-one thousand, four hundred thirty-four".