1911659720348 has 192 divisors, whose sum is σ = 4110294988800. Its totient is φ = 759858278400.

The previous prime is 1911659720297. The next prime is 1911659720363. The reversal of 1911659720348 is 8430279561191.

It is a happy number.

It is a super-2 number, since 2×1911659720348² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1911659720293 and 1911659720302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2040191336 + ... + 2040192272.

It is an arithmetic number, because the mean of its divisors is an integer number (21407786400).

It is a 1-persistent number, because it is pandigital, but 2⋅1911659720348 = 3823319440696 is not.

Almost surely, 2^{1911659720348} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1911659720348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055147494400).

1911659720348 is an abundant number, since it is smaller than the sum of its proper divisors (2198635268452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1911659720348 is a wasteful number, since it uses less digits than its factorization.

1911659720348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 1911659720348 in words is "one trillion, nine hundred eleven billion, six hundred fifty-nine million, seven hundred twenty thousand, three hundred forty-eight".