613620730775 has 24 divisors (see below), whose sum is σ = 841566177984. Its totient is φ = 440888400000.

The previous prime is 613620730729. The next prime is 613620730781. The reversal of 613620730775 is 577037026316.

It is not a de Polignac number, because 613620730775 - 2¹² = 613620726679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25502351 + ... + 25526400.

It is an arithmetic number, because the mean of its divisors is an integer number (35065257416).

Almost surely, 2^613620730775 is an apocalyptic number.

613620730775 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

613620730775 is a deficient number, since it is larger than the sum of its proper divisors (227945447209).

613620730775 is a wasteful number, since it uses less digits than its factorization.

613620730775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51028811 (or 51028806 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 47.

The spelling of 613620730775 in words is "six hundred thirteen billion, six hundred twenty million, seven hundred thirty thousand, seven hundred seventy-five".