5213744781 has 8 divisors (see below), whose sum is σ = 7944753984. Its totient is φ = 2979282720.

The previous prime is 5213744759. The next prime is 5213744803. The reversal of 5213744781 is 1874473125.

It is an interprime number because it is at equal distance from previous prime (5213744759) and next prime (5213744803).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5213744781 - 2¹³ = 5213736589 is a prime.

It is a super-2 number, since 2×5213744781² = 54366269282809475922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213744741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124136760 + ... + 124136801.

It is an arithmetic number, because the mean of its divisors is an integer number (993094248).

Almost surely, 2^5213744781 is an apocalyptic number.

It is an amenable number.

5213744781 is a deficient number, since it is larger than the sum of its proper divisors (2731009203).

5213744781 is a wasteful number, since it uses less digits than its factorization.

5213744781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248273571.

The product of its digits is 188160, while the sum is 42.

The square root of 5213744781 is about 72206.2655245374. The cubic root of 5213744781 is about 1734.0033122012.

The spelling of 5213744781 in words is "five billion, two hundred thirteen million, seven hundred forty-four thousand, seven hundred eighty-one".