47242307251 has 4 divisors (see below), whose sum is σ = 47242765152. Its totient is φ = 47241849352.

The previous prime is 47242307207. The next prime is 47242307261. The reversal of 47242307251 is 15270324274.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 47242307251 - 2¹⁹ = 47241782963 is a prime.

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 47242307251.

It is not an unprimeable number, because it can be changed into a prime (47242307261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6561 + ... + 307453.

It is an arithmetic number, because the mean of its divisors is an integer number (11810691288).

Almost surely, 2^47242307251 is an apocalyptic number.

47242307251 is a deficient number, since it is larger than the sum of its proper divisors (457901).

47242307251 is a wasteful number, since it uses less digits than its factorization.

47242307251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457900.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 47242307251 in words is "forty-seven billion, two hundred forty-two million, three hundred seven thousand, two hundred fifty-one".