742370721187 has 8 divisors (see below), whose sum is σ = 744359791104. Its totient is φ = 740383063368.

The previous prime is 742370721179. The next prime is 742370721193. The reversal of 742370721187 is 781127073247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742370721187 - 2³ = 742370721179 is a prime.

It is a super-3 number, since 3×742370721187³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742370721187.

It is not an unprimeable number, because it can be changed into a prime (742370721137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704058 + ... + 1407280.

It is an arithmetic number, because the mean of its divisors is an integer number (93044973888).

Almost surely, 2^742370721187 is an apocalyptic number.

742370721187 is a deficient number, since it is larger than the sum of its proper divisors (1989069917).

742370721187 is a wasteful number, since it uses less digits than its factorization.

742370721187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706049.

The product of its (nonzero) digits is 921984, while the sum is 49.

The spelling of 742370721187 in words is "seven hundred forty-two billion, three hundred seventy million, seven hundred twenty-one thousand, one hundred eighty-seven".