11897609901982 has 8 divisors (see below), whose sum is σ = 20395902689136. Its totient is φ = 5098975672272.

The previous prime is 11897609901967. The next prime is 11897609902007. The reversal of 11897609901982 is 28910990679811.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424914639343 + ... + 424914639370.

It is an arithmetic number, because the mean of its divisors is an integer number (2549487836142).

Almost surely, 2^{11897609901982} is an apocalyptic number.

11897609901982 is a deficient number, since it is larger than the sum of its proper divisors (8498292787154).

11897609901982 is an equidigital number, since it uses as much as digits as its factorization.

11897609901982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849829278722.

The product of its (nonzero) digits is 35271936, while the sum is 70.

The spelling of 11897609901982 in words is "eleven trillion, eight hundred ninety-seven billion, six hundred nine million, nine hundred one thousand, nine hundred eighty-two".