5401787128 has 32 divisors (see below), whose sum is σ = 10780335360. Its totient is φ = 2528696320.

The previous prime is 5401787123. The next prime is 5401787173. The reversal of 5401787128 is 8217871045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401787123) 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, 78001 + ... + 129952.

It is an arithmetic number, because the mean of its divisors is an integer number (336885480).

Almost surely, 2^5401787128 is an apocalyptic number.

It is an amenable number.

5401787128 is a deficient number, since it is larger than the sum of its proper divisors (5378548232).

5401787128 is a wasteful number, since it uses less digits than its factorization.

5401787128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208167 (or 208163 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 5401787128 is about 73496.8511434333. The cubic root of 5401787128 is about 1754.6041620984.

The spelling of 5401787128 in words is "five billion, four hundred one million, seven hundred eighty-seven thousand, one hundred twenty-eight".