5191757540 has 24 divisors (see below), whose sum is σ = 11010642552. Its totient is φ = 2056140800.

The previous prime is 5191757531. The next prime is 5191757561. The reversal of 5191757540 is 457571915.

It can be written as a sum of positive squares in 4 ways, for example, as 1538522176 + 3653235364 = 39224^2 + 60442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5191757491 and 5191757500.

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, 1283069 + ... + 1287108.

It is an arithmetic number, because the mean of its divisors is an integer number (458776773).

Almost surely, 2^5191757540 is an apocalyptic number.

It is an amenable number.

5191757540 is an abundant number, since it is smaller than the sum of its proper divisors (5818885012).

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

5191757540 is a wasteful number, since it uses less digits than its factorization.

5191757540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570287 (or 2570285 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 44.

The square root of 5191757540 is about 72053.8516666528. The cubic root of 5191757540 is about 1731.5623495304.

The spelling of 5191757540 in words is "five billion, one hundred ninety-one million, seven hundred fifty-seven thousand, five hundred forty".