2751147921 has 16 divisors (see below), whose sum is σ = 4029143040. Its totient is φ = 1662019920.

The previous prime is 2751147911. The next prime is 2751147953. The reversal of 2751147921 is 1297411572.

It is not a de Polignac number, because 2751147921 - 2¹⁰ = 2751146897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2751147921.

It is not an unprimeable number, because it can be changed into a prime (2751147911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047945 + ... + 1050566.

It is an arithmetic number, because the mean of its divisors is an integer number (251821440).

Almost surely, 2^2751147921 is an apocalyptic number.

It is an amenable number.

2751147921 is a deficient number, since it is larger than the sum of its proper divisors (1277995119).

2751147921 is a wasteful number, since it uses less digits than its factorization.

2751147921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098556.

The product of its digits is 35280, while the sum is 39.

The square root of 2751147921 is about 52451.3862638539. The cubic root of 2751147921 is about 1401.2145788029.

The spelling of 2751147921 in words is "two billion, seven hundred fifty-one million, one hundred forty-seven thousand, nine hundred twenty-one".