10919439497 has 4 divisors (see below), whose sum is σ = 11394197760. Its totient is φ = 10444681236.

The previous prime is 10919439481. The next prime is 10919439527. The reversal of 10919439497 is 79493491901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10919439497 - 2⁴ = 10919439481 is a prime.

It is a super-2 number, since 2×10919439497² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10919439407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237379097 + ... + 237379142.

It is an arithmetic number, because the mean of its divisors is an integer number (2848549440).

Almost surely, 2^10919439497 is an apocalyptic number.

It is an amenable number.

10919439497 is a deficient number, since it is larger than the sum of its proper divisors (474758263).

10919439497 is an equidigital number, since it uses as much as digits as its factorization.

10919439497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474758262.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 10919439497 in words is "ten billion, nine hundred nineteen million, four hundred thirty-nine thousand, four hundred ninety-seven".