191787541034 has 16 divisors (see below), whose sum is σ = 288793969800. Its totient is φ = 95523563520.

The previous prime is 191787541031. The next prime is 191787541067. The reversal of 191787541034 is 430145787191.

191787541034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37366049809 + 154421491225 = 193303^2 + 392965^2 .

It is not an unprimeable number, because it can be changed into a prime (191787541031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397442 + ... + 735890.

Almost surely, 2^191787541034 is an apocalyptic number.

191787541034 is a deficient number, since it is larger than the sum of its proper divisors (97006428766).

191787541034 is a wasteful number, since it uses less digits than its factorization.

191787541034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339545.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 191787541034 in words is "one hundred ninety-one billion, seven hundred eighty-seven million, five hundred forty-one thousand, thirty-four".