47158439777 has 2 divisors, whose sum is σ = 47158439778. Its totient is φ = 47158439776.

The previous prime is 47158439753. The next prime is 47158439803. The reversal of 47158439777 is 77793485174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44232819856 + 2925619921 = 210316^2 + 54089^2 .

It is a cyclic number.

It is not a de Polignac number, because 47158439777 - 2²² = 47154245473 is a prime.

It is a super-3 number, since 3×47158439777³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (47158439747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23579219888 + 23579219889.

It is an arithmetic number, because the mean of its divisors is an integer number (23579219889).

Almost surely, 2^47158439777 is an apocalyptic number.

It is an amenable number.

47158439777 is a deficient number, since it is larger than the sum of its proper divisors (1).

47158439777 is an equidigital number, since it uses as much as digits as its factorization.

47158439777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41489280, while the sum is 62.

The spelling of 47158439777 in words is "forty-seven billion, one hundred fifty-eight million, four hundred thirty-nine thousand, seven hundred seventy-seven".