52136746474 has 4 divisors (see below), whose sum is σ = 78205119714. Its totient is φ = 26068373236.

The previous prime is 52136746451. The next prime is 52136746507. The reversal of 52136746474 is 47464763125.

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., 48719525625 + 3417220849 = 220725^2 + 58457^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13034186617 + ... + 13034186620.

Almost surely, 2^52136746474 is an apocalyptic number.

52136746474 is a deficient number, since it is larger than the sum of its proper divisors (26068373240).

52136746474 is a wasteful number, since it uses less digits than its factorization.

52136746474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26068373239.

The product of its digits is 3386880, while the sum is 49.

The spelling of 52136746474 in words is "fifty-two billion, one hundred thirty-six million, seven hundred forty-six thousand, four hundred seventy-four".