191567891107040 has 48 divisors (see below), whose sum is σ = 517233305992032. Its totient is φ = 65680419807744.

The previous prime is 191567891107031. The next prime is 191567891107049. The reversal of 191567891107040 is 40701198765191.

It is an interprime number because it is at equal distance from previous prime (191567891107031) and next prime (191567891107049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191567891107049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85521378839 + ... + 85521381078.

It is an arithmetic number, because the mean of its divisors is an integer number (10775693874834).

Almost surely, 2^{191567891107040} is an apocalyptic number.

191567891107040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191567891107040 is an abundant number, since it is smaller than the sum of its proper divisors (325665414884992).

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

191567891107040 is a wasteful number, since it uses less digits than its factorization.

191567891107040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171042759939 (or 171042759931 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 59.

The spelling of 191567891107040 in words is "one hundred ninety-one trillion, five hundred sixty-seven billion, eight hundred ninety-one million, one hundred seven thousand, forty".