10997819830 has 8 divisors (see below), whose sum is σ = 19796075712. Its totient is φ = 4399127928.

The previous prime is 10997819827. The next prime is 10997819839. The reversal of 10997819830 is 3891879901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10997819839) 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, 549890982 + ... + 549891001.

It is an arithmetic number, because the mean of its divisors is an integer number (2474509464).

Almost surely, 2^10997819830 is an apocalyptic number.

10997819830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10997819830 is a deficient number, since it is larger than the sum of its proper divisors (8798255882).

10997819830 is a wasteful number, since it uses less digits than its factorization.

10997819830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099781990.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 10997819830 in words is "ten billion, nine hundred ninety-seven million, eight hundred nineteen thousand, eight hundred thirty".