47450042351 has 4 divisors (see below), whose sum is σ = 48553531752. Its totient is φ = 46346552952.

The previous prime is 47450042309. The next prime is 47450042377. The reversal of 47450042351 is 15324005474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15324005474 = 2 ⋅7662002737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47450042351 is a prime.

It is a super-2 number, since 2×47450042351² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47450042251) 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, 551744636 + ... + 551744721.

It is an arithmetic number, because the mean of its divisors is an integer number (12138382938).

Almost surely, 2^47450042351 is an apocalyptic number.

47450042351 is a deficient number, since it is larger than the sum of its proper divisors (1103489401).

47450042351 is a wasteful number, since it uses less digits than its factorization.

47450042351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103489400.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 47450042351 in words is "forty-seven billion, four hundred fifty million, forty-two thousand, three hundred fifty-one".