616413891413 has 4 divisors (see below), whose sum is σ = 629529080640. Its totient is φ = 603298702188.

The previous prime is 616413891409. The next prime is 616413891427. The reversal of 616413891413 is 314198314616.

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 616413891413 - 2² = 616413891409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 13115189179 = 616413891413 / (6 + 1 + 6 + 4 + 1 + 3 + 8 + 9 + 1 + 4 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616413891463) 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, 6557594543 + ... + 6557594636.

It is an arithmetic number, because the mean of its divisors is an integer number (157382270160).

Almost surely, 2^616413891413 is an apocalyptic number.

It is an amenable number.

616413891413 is a deficient number, since it is larger than the sum of its proper divisors (13115189227).

616413891413 is a wasteful number, since it uses less digits than its factorization.

616413891413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115189226.

The product of its digits is 373248, while the sum is 47.

The spelling of 616413891413 in words is "six hundred sixteen billion, four hundred thirteen million, eight hundred ninety-one thousand, four hundred thirteen".