5251189749 has 16 divisors (see below), whose sum is σ = 7646373504. Its totient is φ = 3185985600.

The previous prime is 5251189717. The next prime is 5251189751. The reversal of 5251189749 is 9479811525.

It is not a de Polignac number, because 5251189749 - 2⁵ = 5251189717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251189709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945442 + ... + 950979.

It is an arithmetic number, because the mean of its divisors is an integer number (477898344).

Almost surely, 2^5251189749 is an apocalyptic number.

It is an amenable number.

5251189749 is a deficient number, since it is larger than the sum of its proper divisors (2395183755).

5251189749 is a wasteful number, since it uses less digits than its factorization.

5251189749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896508.

The product of its digits is 907200, while the sum is 51.

The square root of 5251189749 is about 72465.0933139536. The cubic root of 5251189749 is about 1738.1446013912.

It can be divided in two parts, 5251 and 189749, that added together give a triangular number (195000 = T₆₂₄).

The spelling of 5251189749 in words is "five billion, two hundred fifty-one million, one hundred eighty-nine thousand, seven hundred forty-nine".