11863497945 has 16 divisors (see below), whose sum is σ = 20441719872. Its totient is φ = 5840491200.

The previous prime is 11863497937. The next prime is 11863497967. The reversal of 11863497945 is 54979436811.

It is a happy number.

It is not a de Polignac number, because 11863497945 - 2³ = 11863497937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30419031 + ... + 30419420.

It is an arithmetic number, because the mean of its divisors is an integer number (1277607492).

Almost surely, 2^11863497945 is an apocalyptic number.

11863497945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11863497945 is a deficient number, since it is larger than the sum of its proper divisors (8578221927).

11863497945 is a wasteful number, since it uses less digits than its factorization.

11863497945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60838472.

The product of its digits is 6531840, while the sum is 57.

The spelling of 11863497945 in words is "eleven billion, eight hundred sixty-three million, four hundred ninety-seven thousand, nine hundred forty-five".