2739121545 has 16 divisors (see below), whose sum is σ = 4407082560. Its totient is φ = 1452702144.

The previous prime is 2739121513. The next prime is 2739121571. The reversal of 2739121545 is 5451219372.

It is not a de Polignac number, because 2739121545 - 2⁵ = 2739121513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507394 + ... + 512763.

It is an arithmetic number, because the mean of its divisors is an integer number (275442660).

Almost surely, 2^2739121545 is an apocalyptic number.

It is an amenable number.

2739121545 is a deficient number, since it is larger than the sum of its proper divisors (1667961015).

2739121545 is a wasteful number, since it uses less digits than its factorization.

2739121545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020344.

The product of its digits is 75600, while the sum is 39.

The square root of 2739121545 is about 52336.6176304889. The cubic root of 2739121545 is about 1399.1698386168.

The spelling of 2739121545 in words is "two billion, seven hundred thirty-nine million, one hundred twenty-one thousand, five hundred forty-five".