2742870825 has 18 divisors (see below), whose sum is σ = 4912786814. Its totient is φ = 1462864320.

The previous prime is 2742870817. The next prime is 2742870827. The reversal of 2742870825 is 5280782472.

It can be written as a sum of positive squares in 3 ways, for example, as 433972224 + 2308898601 = 20832^2 + 48051^2 .

It is not a de Polignac number, because 2742870825 - 2³ = 2742870817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2742870827) 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 17 ways as a sum of consecutive naturals, for example, 6095044 + ... + 6095493.

Almost surely, 2^2742870825 is an apocalyptic number.

2742870825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2742870825 is a deficient number, since it is larger than the sum of its proper divisors (2169915989).

2742870825 is a wasteful number, since it uses less digits than its factorization.

2742870825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190553 (or 12190545 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 2742870825 is about 52372.4242803405. The cubic root of 2742870825 is about 1399.8079370879.

The spelling of 2742870825 in words is "two billion, seven hundred forty-two million, eight hundred seventy thousand, eight hundred twenty-five".