613641310501 has 4 divisors (see below), whose sum is σ = 645938221600. Its totient is φ = 581344399404.

The previous prime is 613641310453. The next prime is 613641310511. The reversal of 613641310501 is 105013146316.

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 613641310501 - 2⁹ = 613641309989 is a prime.

It is a super-3 number, since 3×613641310501³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613641310511) 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, 16148455521 + ... + 16148455558.

It is an arithmetic number, because the mean of its divisors is an integer number (161484555400).

Almost surely, 2^613641310501 is an apocalyptic number.

It is an amenable number.

613641310501 is a deficient number, since it is larger than the sum of its proper divisors (32296911099).

613641310501 is a wasteful number, since it uses less digits than its factorization.

613641310501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32296911098.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 613641310501 its reverse (105013146316), we get a palindrome (718654456817).

The spelling of 613641310501 in words is "six hundred thirteen billion, six hundred forty-one million, three hundred ten thousand, five hundred one".