38199727842690 has 128 divisors (see below), whose sum is σ = 94209753818880. Its totient is φ = 9907026944000.

The previous prime is 38199727842677. The next prime is 38199727842691. The reversal of 38199727842690 is 9624872799183.

It is a super-2 number, since 2×38199727842690² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38199727842691) 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, 798515452 + ... + 798563288.

It is an arithmetic number, because the mean of its divisors is an integer number (736013701710).

Almost surely, 2^{38199727842690} is an apocalyptic number.

38199727842690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38199727842690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47104876909440).

38199727842690 is an abundant number, since it is smaller than the sum of its proper divisors (56010025976190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38199727842690 is a wasteful number, since it uses less digits than its factorization.

38199727842690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49908.

The product of its (nonzero) digits is 658409472, while the sum is 75.

The spelling of 38199727842690 in words is "thirty-eight trillion, one hundred ninety-nine billion, seven hundred twenty-seven million, eight hundred forty-two thousand, six hundred ninety".