5436370661 has 4 divisors (see below), whose sum is σ = 5438174400. Its totient is φ = 5434566924.

The previous prime is 5436370613. The next prime is 5436370717. The reversal of 5436370661 is 1660736345.

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 5436370661 - 2¹⁰ = 5436369637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436370061) 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, 897341 + ... + 903378.

It is an arithmetic number, because the mean of its divisors is an integer number (1359543600).

Almost surely, 2^5436370661 is an apocalyptic number.

It is an amenable number.

5436370661 is a deficient number, since it is larger than the sum of its proper divisors (1803739).

5436370661 is a wasteful number, since it uses less digits than its factorization.

5436370661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803738.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 5436370661 is about 73731.7479855184. The cubic root of 5436370661 is about 1758.3406645627.

The spelling of 5436370661 in words is "five billion, four hundred thirty-six million, three hundred seventy thousand, six hundred sixty-one".