311728861059 has 288 divisors, whose sum is σ = 613078502400. Its totient is φ = 139336243200.

The previous prime is 311728861057. The next prime is 311728861141. The reversal of 311728861059 is 950168827113.

It is not a de Polignac number, because 311728861059 - 2¹ = 311728861057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (311728861051) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 166609894 + ... + 166611764.

It is an arithmetic number, because the mean of its divisors is an integer number (2128744800).

Almost surely, 2^311728861059 is an apocalyptic number.

311728861059 is a deficient number, since it is larger than the sum of its proper divisors (301349641341).

311728861059 is a wasteful number, since it uses less digits than its factorization.

311728861059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 311728861059 in words is "three hundred eleven billion, seven hundred twenty-eight million, eight hundred sixty-one thousand, fifty-nine".