5187157440 has 112 divisors (see below), whose sum is σ = 16494617760. Its totient is φ = 1381109760.

The previous prime is 5187157427. The next prime is 5187157463. The reversal of 5187157440 is 447517815.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5187157392 and 5187157401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676830 + ... + 684450.

Almost surely, 2^5187157440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5187157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8247308880).

5187157440 is an abundant number, since it is smaller than the sum of its proper divisors (11307460320).

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

5187157440 is a wasteful number, since it uses less digits than its factorization.

5187157440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350 (or 8340 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 5187157440 is about 72021.9233289420. The cubic root of 5187157440 is about 1731.0507877839.

The spelling of 5187157440 in words is "five billion, one hundred eighty-seven million, one hundred fifty-seven thousand, four hundred forty".