916392400247 has 8 divisors (see below), whose sum is σ = 926834926320. Its totient is φ = 905953118400.

The previous prime is 916392400229. The next prime is 916392400307. The reversal of 916392400247 is 742004293619.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916392400247 is a prime.

It is a super-2 number, since 2×916392400247² (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 (916392400447) 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, 240629 + ... + 1375022.

It is an arithmetic number, because the mean of its divisors is an integer number (115854365790).

Almost surely, 2^916392400247 is an apocalyptic number.

916392400247 is a deficient number, since it is larger than the sum of its proper divisors (10442526073).

916392400247 is a wasteful number, since it uses less digits than its factorization.

916392400247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622113.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 916392400247 in words is "nine hundred sixteen billion, three hundred ninety-two million, four hundred thousand, two hundred forty-seven".