994443391415 has 8 divisors (see below), whose sum is σ = 1196249754480. Its totient is φ = 793609589952.

The previous prime is 994443391399. The next prime is 994443391433. The reversal of 994443391415 is 514193344499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 994443391415 - 2⁴ = 994443391399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243138149 + ... + 243142238.

It is an arithmetic number, because the mean of its divisors is an integer number (149531219310).

Almost surely, 2^994443391415 is an apocalyptic number.

994443391415 is a deficient number, since it is larger than the sum of its proper divisors (201806363065).

994443391415 is a wasteful number, since it uses less digits than its factorization.

994443391415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486280801.

The product of its digits is 8398080, while the sum is 56.

The spelling of 994443391415 in words is "nine hundred ninety-four billion, four hundred forty-three million, three hundred ninety-one thousand, four hundred fifteen".