5387033781 has 12 divisors (see below), whose sum is σ = 7829011008. Its totient is φ = 3569322024.

The previous prime is 5387033719. The next prime is 5387033837. The reversal of 5387033781 is 1873307835.

5387033781 is a `hidden beast` number, since 538 + 7 + 0 + 3 + 37 + 81 = 666.

It is not a de Polignac number, because 5387033781 - 2⁹ = 5387033269 is a prime.

It is a super-2 number, since 2×5387033781² = 58040265915270311922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5387033381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1834605 + ... + 1837538.

It is an arithmetic number, because the mean of its divisors is an integer number (652417584).

Almost surely, 2^5387033781 is an apocalyptic number.

It is an amenable number.

5387033781 is a deficient number, since it is larger than the sum of its proper divisors (2441977227).

5387033781 is a wasteful number, since it uses less digits than its factorization.

5387033781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672312 (or 3672309 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 5387033781 is about 73396.4153143735. The cubic root of 5387033781 is about 1753.0053155123.

The spelling of 5387033781 in words is "five billion, three hundred eighty-seven million, thirty-three thousand, seven hundred eighty-one".