5156992787 has 4 divisors (see below), whose sum is σ = 5428413480. Its totient is φ = 4885572096.

The previous prime is 5156992783. The next prime is 5156992807. The reversal of 5156992787 is 7872996515.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5156992787 - 2² = 5156992783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5156992783) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 135710318 + ... + 135710355.

It is an arithmetic number, because the mean of its divisors is an integer number (1357103370).

Almost surely, 2^5156992787 is an apocalyptic number.

5156992787 is a deficient number, since it is larger than the sum of its proper divisors (271420693).

5156992787 is a wasteful number, since it uses less digits than its factorization.

5156992787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271420692.

The product of its digits is 9525600, while the sum is 59.

The square root of 5156992787 is about 71812.2050002644. The cubic root of 5156992787 is about 1727.6887606516.

The spelling of 5156992787 in words is "five billion, one hundred fifty-six million, nine hundred ninety-two thousand, seven hundred eighty-seven".