38190081081 has 16 divisors (see below), whose sum is σ = 51273216000. Its totient is φ = 25283576448.

The previous prime is 38190081071. The next prime is 38190081101. The reversal of 38190081081 is 18018009183.

It is not a de Polignac number, because 38190081081 - 2⁵ = 38190081049 is a prime.

It is a super-2 number, since 2×38190081081² (a number of 22 digits) contains 22 as substring.

38190081081 is a modest number, since divided by 81081 gives 38190 as remainder.

It is not an unprimeable number, because it can be changed into a prime (38190081011) 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, 3309640 + ... + 3321158.

It is an arithmetic number, because the mean of its divisors is an integer number (3204576000).

Almost surely, 2^38190081081 is an apocalyptic number.

It is an amenable number.

38190081081 is a deficient number, since it is larger than the sum of its proper divisors (13083134919).

38190081081 is a wasteful number, since it uses less digits than its factorization.

38190081081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19088.

The product of its (nonzero) digits is 13824, while the sum is 39.

The spelling of 38190081081 in words is "thirty-eight billion, one hundred ninety million, eighty-one thousand, eighty-one".