191151208248 has 1024 divisors, whose sum is σ = 697596641280. Its totient is φ = 42065049600.

The previous prime is 191151208211. The next prime is 191151208307. The reversal of 191151208248 is 842802151191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1505127561 + ... + 1505127687.

It is an arithmetic number, because the mean of its divisors is an integer number (681246720).

Almost surely, 2^191151208248 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 191151208248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348798320640).

191151208248 is an abundant number, since it is smaller than the sum of its proper divisors (506445433032).

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

191151208248 is a wasteful number, since it uses less digits than its factorization.

191151208248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 42.

The spelling of 191151208248 in words is "one hundred ninety-one billion, one hundred fifty-one million, two hundred eight thousand, two hundred forty-eight".