11778410787 has 32 divisors (see below), whose sum is σ = 18477263616. Its totient is φ = 6579619200.

The previous prime is 11778410767. The next prime is 11778410797. The reversal of 11778410787 is 78701487711.

It is not a de Polignac number, because 11778410787 - 2⁷ = 11778410659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11778410717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276573 + ... + 316305.

It is an arithmetic number, because the mean of its divisors is an integer number (577414488).

Almost surely, 2^11778410787 is an apocalyptic number.

11778410787 is a deficient number, since it is larger than the sum of its proper divisors (6698852829).

11778410787 is a wasteful number, since it uses less digits than its factorization.

11778410787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40451.

The product of its (nonzero) digits is 614656, while the sum is 51.

The spelling of 11778410787 in words is "eleven billion, seven hundred seventy-eight million, four hundred ten thousand, seven hundred eighty-seven".