916861438371 has 16 divisors (see below), whose sum is σ = 1224993863808. Its totient is φ = 609985636800.

The previous prime is 916861438327. The next prime is 916861438373. The reversal of 916861438371 is 173834168619.

It is a happy number.

It is not a de Polignac number, because 916861438371 - 2¹³ = 916861430179 is a prime.

It is a super-2 number, since 2×916861438371² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (916861438373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5695135 + ... + 5853911.

It is an arithmetic number, because the mean of its divisors is an integer number (76562116488).

Almost surely, 2^916861438371 is an apocalyptic number.

916861438371 is a deficient number, since it is larger than the sum of its proper divisors (308132425437).

916861438371 is a wasteful number, since it uses less digits than its factorization.

916861438371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162722.

The product of its digits is 5225472, while the sum is 57.

The spelling of 916861438371 in words is "nine hundred sixteen billion, eight hundred sixty-one million, four hundred thirty-eight thousand, three hundred seventy-one".