990067368238 has 128 divisors (see below), whose sum is σ = 1678472699904. Its totient is φ = 435117312000.

The previous prime is 990067368211. The next prime is 990067368239. The reversal of 990067368238 is 832863760099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990067368239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2147651328 + ... + 2147651788.

It is an arithmetic number, because the mean of its divisors is an integer number (13113067968).

Almost surely, 2^990067368238 is an apocalyptic number.

990067368238 is a deficient number, since it is larger than the sum of its proper divisors (688405331666).

990067368238 is a wasteful number, since it uses less digits than its factorization.

990067368238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 990067368238 in words is "nine hundred ninety billion, sixty-seven million, three hundred sixty-eight thousand, two hundred thirty-eight".