5156261426 has 4 divisors (see below), whose sum is σ = 7734392142. Its totient is φ = 2578130712.

The previous prime is 5156261377. The next prime is 5156261431. The reversal of 5156261426 is 6241626515.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4569895201 + 586366225 = 67601^2 + 24215^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5156261426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289065355 + ... + 1289065358.

Almost surely, 2^5156261426 is an apocalyptic number.

5156261426 is a deficient number, since it is larger than the sum of its proper divisors (2578130716).

5156261426 is a wasteful number, since it uses less digits than its factorization.

5156261426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578130715.

The product of its digits is 86400, while the sum is 38.

The square root of 5156261426 is about 71807.1126421332. The cubic root of 5156261426 is about 1727.6070835988.

The spelling of 5156261426 in words is "five billion, one hundred fifty-six million, two hundred sixty-one thousand, four hundred twenty-six".