999290375416 has 8 divisors (see below), whose sum is σ = 1873669453920. Its totient is φ = 499645187704.

The previous prime is 999290375399. The next prime is 999290375417. The reversal of 999290375416 is 614573092999.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999290375417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62455648456 + ... + 62455648471.

It is an arithmetic number, because the mean of its divisors is an integer number (234208681740).

Almost surely, 2^999290375416 is an apocalyptic number.

It is an amenable number.

999290375416 is a deficient number, since it is larger than the sum of its proper divisors (874379078504).

999290375416 is a wasteful number, since it uses less digits than its factorization.

999290375416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124911296933 (or 124911296929 counting only the distinct ones).

The product of its (nonzero) digits is 33067440, while the sum is 64.

It can be divided in two parts, 99929037 and 5416, that added together give a triangular number (99934453 = T₁₄₁₃₇).

The spelling of 999290375416 in words is "nine hundred ninety-nine billion, two hundred ninety million, three hundred seventy-five thousand, four hundred sixteen".