5211709457988 has 24 divisors (see below), whose sum is σ = 13266169529760. Its totient is φ = 1579305896320.

The previous prime is 5211709457959. The next prime is 5211709458017. The reversal of 5211709457988 is 8897549071125.

It is an interprime number because it is at equal distance from previous prime (5211709457959) and next prime (5211709458017).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19741323573 + ... + 19741323836.

It is an arithmetic number, because the mean of its divisors is an integer number (552757063740).

Almost surely, 2^{5211709457988} is an apocalyptic number.

It is an amenable number.

5211709457988 is an abundant number, since it is smaller than the sum of its proper divisors (8054460071772).

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

5211709457988 is a wasteful number, since it uses less digits than its factorization.

5211709457988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39482647427 (or 39482647425 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 66.

The spelling of 5211709457988 in words is "five trillion, two hundred eleven billion, seven hundred nine million, four hundred fifty-seven thousand, nine hundred eighty-eight".