1191910648320 has 480 divisors, whose sum is σ = 4784116296960. Its totient is φ = 268597002240.

The previous prime is 1191910648301. The next prime is 1191910648339. The reversal of 1191910648320 is 238460191911.

It is an interprime number because it is at equal distance from previous prime (1191910648301) and next prime (1191910648339).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11398836 + ... + 11502924.

It is an arithmetic number, because the mean of its divisors is an integer number (9966908952).

Almost surely, 2^{1191910648320} is an apocalyptic number.

1191910648320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1191910648320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392058148480).

1191910648320 is an abundant number, since it is smaller than the sum of its proper divisors (3592205648640).

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

1191910648320 is a wasteful number, since it uses less digits than its factorization.

1191910648320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104196 (or 104177 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 1191910648320 in words is "one trillion, one hundred ninety-one billion, nine hundred ten million, six hundred forty-eight thousand, three hundred twenty".