35028491281 has 9 divisors (see below), whose sum is σ = 40748952699. Its totient is φ = 30023298144.

The previous prime is 35028491269. The next prime is 35028491287. The reversal of 35028491281 is 18219482053.

The square root of 35028491281 is 187159.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23576067025 + 11452424256 = 153545^2 + 107016^2 .

It is not a de Polignac number, because 35028491281 - 2⁷ = 35028491153 is a prime.

It is a super-2 number, since 2×35028491281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (35028491287) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1296745 + ... + 1323481.

It is an arithmetic number, because the mean of its divisors is an integer number (4527661411).

Almost surely, 2^35028491281 is an apocalyptic number.

35028491281 is the 187159-th square number.

35028491281 is the 93580-th centered octagonal number.

It is an amenable number.

35028491281 is a deficient number, since it is larger than the sum of its proper divisors (5720461418).

35028491281 is an frugal number, since it uses more digits than its factorization.

35028491281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53488 (or 26744 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 35028491281 in words is "thirty-five billion, twenty-eight million, four hundred ninety-one thousand, two hundred eighty-one".