10540861771 has 4 divisors (see below), whose sum is σ = 11499121944. Its totient is φ = 9582601600.

The previous prime is 10540861763. The next prime is 10540861777. The reversal of 10540861771 is 17716804501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10540861771 - 2³ = 10540861763 is a prime.

It is a super-2 number, since 2×10540861771² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10540861777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479130070 + ... + 479130091.

It is an arithmetic number, because the mean of its divisors is an integer number (2874780486).

Almost surely, 2^10540861771 is an apocalyptic number.

10540861771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10540861771 is a deficient number, since it is larger than the sum of its proper divisors (958260173).

10540861771 is an equidigital number, since it uses as much as digits as its factorization.

10540861771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958260172.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 10540861771 in words is "ten billion, five hundred forty million, eight hundred sixty-one thousand, seven hundred seventy-one".