1613838761 has 16 divisors (see below), whose sum is σ = 1680315840. Its totient is φ = 1548856320.

The previous prime is 1613838697. The next prime is 1613838763. The reversal of 1613838761 is 1678383161.

It is a cyclic number.

It is not a de Polignac number, because 1613838761 - 2⁶ = 1613838697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613838763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710750 + ... + 713016.

It is an arithmetic number, because the mean of its divisors is an integer number (105019740).

Almost surely, 2^1613838761 is an apocalyptic number.

It is an amenable number.

1613838761 is a deficient number, since it is larger than the sum of its proper divisors (66477079).

1613838761 is a wasteful number, since it uses less digits than its factorization.

1613838761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584.

The product of its digits is 145152, while the sum is 44.

The square root of 1613838761 is about 40172.6120758907. The cubic root of 1613838761 is about 1172.9694850348.

The spelling of 1613838761 in words is "one billion, six hundred thirteen million, eight hundred thirty-eight thousand, seven hundred sixty-one".