19901027041 has 15 divisors (see below), whose sum is σ = 23224550321. Its totient is φ = 17052098196.

The previous prime is 19901026973. The next prime is 19901027171. The reversal of 19901027041 is 14072010991.

The square root of 19901027041 is 141071.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19901027041 - 2²³ = 19892638433 is a prime.

It is a super-2 number, since 2×19901027041² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19901026988 and 19901027006.

It is not an unprimeable number, because it can be changed into a prime (19901027941) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6911040 + ... + 6913918.

Almost surely, 2^19901027041 is an apocalyptic number.

19901027041 is the 141071-st square number.

19901027041 is the 70536-th centered octagonal number.

It is an amenable number.

19901027041 is a deficient number, since it is larger than the sum of its proper divisors (3323523280).

19901027041 is an frugal number, since it uses more digits than its factorization.

19901027041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 19901027041 in words is "nineteen billion, nine hundred one million, twenty-seven thousand, forty-one".