5311578207601 has 4 divisors (see below), whose sum is σ = 5455134375412. Its totient is φ = 5168022039792.

The previous prime is 5311578207599. The next prime is 5311578207701. The reversal of 5311578207601 is 1067028751135.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3427681960000 + 1883896247601 = 1851400^2 + 1372551^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311578207601 - 2¹ = 5311578207599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5311578207701) 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, 71778083850 + ... + 71778083923.

It is an arithmetic number, because the mean of its divisors is an integer number (1363783593853).

Almost surely, 2^{5311578207601} is an apocalyptic number.

It is an amenable number.

5311578207601 is a deficient number, since it is larger than the sum of its proper divisors (143556167811).

5311578207601 is a wasteful number, since it uses less digits than its factorization.

5311578207601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143556167810.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 5311578207601 in words is "five trillion, three hundred eleven billion, five hundred seventy-eight million, two hundred seven thousand, six hundred one".