5211715711986 has 48 divisors (see below), whose sum is σ = 12913903364544. Its totient is φ = 1488057491232.

The previous prime is 5211715711967. The next prime is 5211715712081. The reversal of 5211715711986 is 6891175171125.

It is a happy number.

5211715711986 is a `hidden beast` number, since 52 + 1 + 1 + 7 + 1 + 571 + 19 + 8 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13758801 + ... + 14132516.

It is an arithmetic number, because the mean of its divisors is an integer number (269039653428).

Almost surely, 2^{5211715711986} is an apocalyptic number.

5211715711986 is an abundant number, since it is smaller than the sum of its proper divisors (7702187652558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5211715711986 is a wasteful number, since it uses less digits than its factorization.

5211715711986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27892815 (or 27892812 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 54.

The spelling of 5211715711986 in words is "five trillion, two hundred eleven billion, seven hundred fifteen million, seven hundred eleven thousand, nine hundred eighty-six".