613929281870 has 16 divisors (see below), whose sum is σ = 1121566331088. Its totient is φ = 241906463040.

The previous prime is 613929281857. The next prime is 613929281881. The reversal of 613929281870 is 78182929316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458155511 + ... + 458156850.

It is an arithmetic number, because the mean of its divisors is an integer number (70097895693).

Almost surely, 2^613929281870 is an apocalyptic number.

613929281870 is a deficient number, since it is larger than the sum of its proper divisors (507637049218).

613929281870 is a wasteful number, since it uses less digits than its factorization.

613929281870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916312435.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 613929281870 in words is "six hundred thirteen billion, nine hundred twenty-nine million, two hundred eighty-one thousand, eight hundred seventy".