5237617781 has 8 divisors (see below), whose sum is σ = 5821572384. Its totient is φ = 4671631120.

The previous prime is 5237617699. The next prime is 5237617783. The reversal of 5237617781 is 1877167325.

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

It is a cyclic number.

It is not a de Polignac number, because 5237617781 - 2²² = 5233423477 is a prime.

It is a super-2 number, since 2×5237617781² = 54865280039694727922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5237617783) 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, 4491371 + ... + 4492536.

It is an arithmetic number, because the mean of its divisors is an integer number (727696548).

Almost surely, 2^5237617781 is an apocalyptic number.

It is an amenable number.

5237617781 is a deficient number, since it is larger than the sum of its proper divisors (583954603).

5237617781 is a wasteful number, since it uses less digits than its factorization.

5237617781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983971.

The product of its digits is 493920, while the sum is 47.

The square root of 5237617781 is about 72371.3878615023. The cubic root of 5237617781 is about 1736.6458683109.

The spelling of 5237617781 in words is "five billion, two hundred thirty-seven million, six hundred seventeen thousand, seven hundred eighty-one".