74200051285 has 4 divisors (see below), whose sum is σ = 89040061548. Its totient is φ = 59360041024.

The previous prime is 74200051231. The next prime is 74200051297. The reversal of 74200051285 is 58215000247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58215000247 = 461 ⋅126279827.

It can be written as a sum of positive squares in 2 ways, for example, as 11159387044 + 63040664241 = 105638^2 + 251079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74200051285 is a prime.

It is a super-2 number, since 2×74200051285² (a number of 23 digits) contains 22 as substring.

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 74200051285.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7420005124 + ... + 7420005133.

It is an arithmetic number, because the mean of its divisors is an integer number (22260015387).

Almost surely, 2^74200051285 is an apocalyptic number.

It is an amenable number.

74200051285 is a deficient number, since it is larger than the sum of its proper divisors (14840010263).

74200051285 is a wasteful number, since it uses less digits than its factorization.

74200051285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14840010262.

The product of its (nonzero) digits is 22400, while the sum is 34.

The spelling of 74200051285 in words is "seventy-four billion, two hundred million, fifty-one thousand, two hundred eighty-five".