994929721493 has 8 divisors (see below), whose sum is σ = 1021006619136. Its totient is φ = 968939029600.

The previous prime is 994929721481. The next prime is 994929721531. The reversal of 994929721493 is 394127929499.

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 994929721493 - 2²⁶ = 994862612629 is a prime.

It is a super-2 number, since 2×994929721493² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994929721193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21528053 + ... + 21574218.

It is an arithmetic number, because the mean of its divisors is an integer number (127625827392).

Almost surely, 2^994929721493 is an apocalyptic number.

It is an amenable number.

994929721493 is a deficient number, since it is larger than the sum of its proper divisors (26076897643).

994929721493 is a wasteful number, since it uses less digits than its factorization.

994929721493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43102875.

The product of its digits is 79361856, while the sum is 68.

The spelling of 994929721493 in words is "nine hundred ninety-four billion, nine hundred twenty-nine million, seven hundred twenty-one thousand, four hundred ninety-three".