527778336081 has 4 divisors (see below), whose sum is σ = 703704448112. Its totient is φ = 351852224052.

The previous prime is 527778336031. The next prime is 527778336083. The reversal of 527778336081 is 180633877725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 527778336081 - 2³⁵ = 493418597713 is a prime.

It is a super-2 number, since 2×527778336081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (527778336083) 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, 87963056011 + ... + 87963056016.

It is an arithmetic number, because the mean of its divisors is an integer number (175926112028).

Almost surely, 2^527778336081 is an apocalyptic number.

It is an amenable number.

527778336081 is a deficient number, since it is larger than the sum of its proper divisors (175926112031).

527778336081 is a wasteful number, since it uses less digits than its factorization.

527778336081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175926112030.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 527778336081 in words is "five hundred twenty-seven billion, seven hundred seventy-eight million, three hundred thirty-six thousand, eighty-one".