47861164451 has 4 divisors (see below), whose sum is σ = 47894242032. Its totient is φ = 47828086872.

The previous prime is 47861164441. The next prime is 47861164457. The reversal of 47861164451 is 15446116874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15446116874 = 2 ⋅7723058437.

It is a cyclic number.

It is not a de Polignac number, because 47861164451 - 2¹⁸ = 47860902307 is a prime.

It is a super-2 number, since 2×47861164451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47861164396 and 47861164405.

It is not an unprimeable number, because it can be changed into a prime (47861164457) 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, 16536620 + ... + 16539513.

It is an arithmetic number, because the mean of its divisors is an integer number (11973560508).

Almost surely, 2^47861164451 is an apocalyptic number.

47861164451 is a deficient number, since it is larger than the sum of its proper divisors (33077581).

47861164451 is a wasteful number, since it uses less digits than its factorization.

47861164451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33077580.

The product of its digits is 645120, while the sum is 47.

The spelling of 47861164451 in words is "forty-seven billion, eight hundred sixty-one million, one hundred sixty-four thousand, four hundred fifty-one".