5191187456 has 352 divisors, whose sum is σ = 14113491840. Its totient is φ = 1849688064.

The previous prime is 5191187387. The next prime is 5191187479. The reversal of 5191187456 is 6547811915.

It is a self number, because there is not a number n which added to its sum of digits gives 5191187456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45939656 + ... + 45939768.

Almost surely, 2^5191187456 is an apocalyptic number.

5191187456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5191187456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7056745920).

5191187456 is an abundant number, since it is smaller than the sum of its proper divisors (8922304384).

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

5191187456 is a wasteful number, since it uses less digits than its factorization.

5191187456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 181 counting only the distinct ones).

The product of its digits is 302400, while the sum is 47.

The square root of 5191187456 is about 72049.8956002019. The cubic root of 5191187456 is about 1731.4989688020.

The spelling of 5191187456 in words is "five billion, one hundred ninety-one million, one hundred eighty-seven thousand, four hundred fifty-six".