11761910051 has 4 divisors (see below), whose sum is σ = 11871834552. Its totient is φ = 11651985552.

The previous prime is 11761910047. The next prime is 11761910087. The reversal of 11761910051 is 15001916711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15001916711 = 17807 ⋅842473.

It is a cyclic number.

It is not a de Polignac number, because 11761910051 - 2² = 11761910047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11761910021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54962090 + ... + 54962303.

It is an arithmetic number, because the mean of its divisors is an integer number (2967958638).

Almost surely, 2^11761910051 is an apocalyptic number.

11761910051 is a deficient number, since it is larger than the sum of its proper divisors (109924501).

11761910051 is a wasteful number, since it uses less digits than its factorization.

11761910051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109924500.

The product of its (nonzero) digits is 1890, while the sum is 32.

The spelling of 11761910051 in words is "eleven billion, seven hundred sixty-one million, nine hundred ten thousand, fifty-one".