1613623736389 has 24 divisors (see below), whose sum is σ = 1988482851648. Its totient is φ = 1301095635840.

The previous prime is 1613623736359. The next prime is 1613623736399. The reversal of 1613623736389 is 9836373263161.

It is not a de Polignac number, because 1613623736389 - 2³⁹ = 1063867922501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613623736359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184944 + ... + 2152054.

It is an arithmetic number, because the mean of its divisors is an integer number (82853452152).

Almost surely, 2^{1613623736389} is an apocalyptic number.

It is an amenable number.

1613623736389 is a deficient number, since it is larger than the sum of its proper divisors (374859115259).

1613623736389 is a wasteful number, since it uses less digits than its factorization.

1613623736389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969145 (or 969138 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 58.

The spelling of 1613623736389 in words is "one trillion, six hundred thirteen billion, six hundred twenty-three million, seven hundred thirty-six thousand, three hundred eighty-nine".