11778452901 has 24 divisors (see below), whose sum is σ = 17133843584. Its totient is φ = 7796748960.

The previous prime is 11778452879. The next prime is 11778452923. The reversal of 11778452901 is 10925487711.

It is a happy number.

11778452901 is a `hidden beast` number, since 117 + 7 + 8 + 4 + 529 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (11778452879) and next prime (11778452923).

It is not a de Polignac number, because 11778452901 - 2¹⁷ = 11778321829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778452401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3263640 + ... + 3267246.

Almost surely, 2^11778452901 is an apocalyptic number.

It is an amenable number.

11778452901 is a deficient number, since it is larger than the sum of its proper divisors (5355390683).

11778452901 is a wasteful number, since it uses less digits than its factorization.

11778452901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 11778452901 in words is "eleven billion, seven hundred seventy-eight million, four hundred fifty-two thousand, nine hundred one".