614429446891 has 4 divisors (see below), whose sum is σ = 661693250512. Its totient is φ = 567165643272.

The previous prime is 614429446877. The next prime is 614429446901. The reversal of 614429446891 is 198644924416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 614429446891 - 2¹³ = 614429438699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (614429446861) 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, 23631901791 + ... + 23631901816.

It is an arithmetic number, because the mean of its divisors is an integer number (165423312628).

Almost surely, 2^614429446891 is an apocalyptic number.

614429446891 is a deficient number, since it is larger than the sum of its proper divisors (47263803621).

614429446891 is a wasteful number, since it uses less digits than its factorization.

614429446891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47263803620.

The product of its digits is 11943936, while the sum is 58.

The spelling of 614429446891 in words is "six hundred fourteen billion, four hundred twenty-nine million, four hundred forty-six thousand, eight hundred ninety-one".