11621087711 has 2 divisors, whose sum is σ = 11621087712. Its totient is φ = 11621087710.

The previous prime is 11621087689. The next prime is 11621087791. The reversal of 11621087711 is 11778012611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11621087711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621087791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810543855 + 5810543856.

It is an arithmetic number, because the mean of its divisors is an integer number (5810543856).

Almost surely, 2^11621087711 is an apocalyptic number.

11621087711 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621087711 is an equidigital number, since it uses as much as digits as its factorization.

11621087711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 35.

The spelling of 11621087711 in words is "eleven billion, six hundred twenty-one million, eighty-seven thousand, seven hundred eleven".