2751721401 has 16 divisors (see below), whose sum is σ = 4310389440. Its totient is φ = 1539424320.

The previous prime is 2751721393. The next prime is 2751721429. The reversal of 2751721401 is 1041271572.

It is not a de Polignac number, because 2751721401 - 2³ = 2751721393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2751725401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3206706 + ... + 3207563.

It is an arithmetic number, because the mean of its divisors is an integer number (269399340).

Almost surely, 2^2751721401 is an apocalyptic number.

It is an amenable number.

2751721401 is a deficient number, since it is larger than the sum of its proper divisors (1558668039).

2751721401 is a wasteful number, since it uses less digits than its factorization.

2751721401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414296.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 2751721401 is about 52456.8527553836. The cubic root of 2751721401 is about 1401.3119336443.

Adding to 2751721401 its reverse (1041271572), we get a palindrome (3792992973).

The spelling of 2751721401 in words is "two billion, seven hundred fifty-one million, seven hundred twenty-one thousand, four hundred one".