5191497872428 has 18 divisors (see below), whose sum is σ = 10568406383556. Its totient is φ = 2224927659528.

The previous prime is 5191497872419. The next prime is 5191497872443. The reversal of 5191497872428 is 8242787941915.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13243616826 + ... + 13243617217.

Almost surely, 2^{5191497872428} is an apocalyptic number.

It is an amenable number.

5191497872428 is an abundant number, since it is smaller than the sum of its proper divisors (5376908511128).

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

5191497872428 is a wasteful number, since it uses less digits than its factorization.

5191497872428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26487234061 (or 26487234052 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 67.

The spelling of 5191497872428 in words is "five trillion, one hundred ninety-one billion, four hundred ninety-seven million, eight hundred seventy-two thousand, four hundred twenty-eight".