742055812091 has 16 divisors (see below), whose sum is σ = 835664974848. Its totient is φ = 652806789600.

The previous prime is 742055812073. The next prime is 742055812111. The reversal of 742055812091 is 190218550247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742055812091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742055812061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13904240 + ... + 13957506.

It is an arithmetic number, because the mean of its divisors is an integer number (52229060928).

Almost surely, 2^742055812091 is an apocalyptic number.

742055812091 is a deficient number, since it is larger than the sum of its proper divisors (93609162757).

742055812091 is a wasteful number, since it uses less digits than its factorization.

742055812091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94162.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 742055812091 in words is "seven hundred forty-two billion, fifty-five million, eight hundred twelve thousand, ninety-one".